ANGO

Line plots across dimensions of each concept
Line plots across concepts
Tables

Plots across concepts

IncomeStatement

Expenses

Balance Sheet

Assets

Current Assets

NonCurrent Assets

Liabilities

Current Liabilities

Stockholders Equity

CashFlow

NetCashProvidedByUsedInOperatingActivities

NetCashProvidedByUsedInInvestingActivities

OperatingLeaseLiability

NonoperatingIncomeExpense

LesseeOperatingLeaseLiabilityPaymentsDue

FiniteLivedIntangibleAssets

InventoryNet

AccountsReceivable

Tables

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:CommonStockValue	█████████████████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▁▁▁	0.375	0.375	0.374	0.374	0.373	0.373	0.372	0.372	0.372	0.372	0.37	0.37	0.369	0.368	0.367	0.37	0.369	0.366	0.363	0.363	0.362	0.362	0.36	0.36	0.358	0.356	0.353	0.353	0.353	0.352	0.351	0.35	0.349	0.349	0.348	0.252	0.251	0.252	NA	0.25	NA	NA	NA
us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock	▄	38702.03	NA	38.448536	38.434757	38.363926	38.359875	37.984382	37.955894	37.875529	37.861057	37.594493	37.544506	37.481675	37.397986	37.210091	36.780397	37.146923	36.881766	36.420403	36.367049	36.285557	36.274574	36.043725	36.023413	35.759021	35.646491	35.442004	35.416043	35.305229	35.230433	35.060351	35.041406	34.97412	34.942954	34.826531	25.194795	25.103357	25.185429	NA	24.985657	NA	NA	NA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding	█▁	38.327	38.157	NA	37.999	37.992	37.783	NA	38.338	38.117	37.323	NA	37.442	37.383	36.919	NA	37.126	37.146	36.698	NA	36.39	36.14	35.96	NA	35.755	36.127	35.885	NA	35.704	35.132	34.95	NA	34.834	35.311	34.704	NA	25.129	25.34	25.197	NA	NA	25.174	25.094	25.032
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic	█▁	38.327	38.157	NA	37.999	37.992	37.783	NA	37.518	37.5	37.323	NA	37.122	37.066	36.919	NA	36.625	36.807	36.319	NA	36.146	36.14	35.96	NA	35.755	35.595	35.367	NA	35.184	35.132	34.95	NA	34.834	34.827	34.704	NA	25.129	25.19	25.024	NA	NA	24.902	24.845	24.755
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	▁█	3.133	3.18	NA	2.699	2.694	2.503	NA	2.293	2.384	2.309	NA	1.259	1.124	1.085	NA	1.04	0.98	1.503	NA	3.394	3.161	3.241	NA	0.362	0.8	0.9	NA	0.7	2.3	2.8	NA	2.9	3.2	2.922983	NA	2.4	2.4	1.946509	NA	NA	NA	NA	NA
us-gaap:EarningsPerShareBasic	▆▆▁▆▆▆█▆▆▆▆▇▆▆▆▆▇▆▅▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆	-0.11	-0.11	-4.14	-0.15	-0.07	-0.03	1.57	0.02	0.06	-0.01	0.06	0.38	0.01	0.0	-0.35	0.08	0.37	0.04	-1.19	0.02	-0.01	-0.02	-0.02	-0.12	0.04	0.01	-0.03	0.14	0.0	-0.01	-0.03	-0.03	0.06	-0.02	-0.27	-0.07	0.09	0.05	0.05	-0.02999999999999997	0.15	0.13	0.08
us-gaap:EarningsPerShareDiluted	▆▆▁▆▆▆█▆▆▆▆▇▆▆▆▆▇▆▅▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆	-0.11	-0.11	-4.14	-0.15	-0.07	-0.03	1.54	0.02	0.06	-0.01	0.06	0.37	0.01	0.0	-0.35	0.08	0.37	0.04	-1.19	0.02	-0.01	-0.02	-0.02	-0.12	0.04	0.01	-0.03	0.13	0.0	-0.01	-0.03	-0.03	0.06	-0.02	-0.27	-0.07	0.09	0.05	0.05	-0.03999999999999998	0.15	0.13	0.08

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:AllocatedShareBasedCompensationExpense	█▇▇▇█▇██████▇▇▆▇▇▇▁▇▇▇▂▇▇▇	2.4	1.9	1.593	1.8	2.2	1.9	2.149	2.4	2.6	2.2	2.112	2.1	2.0	1.8	1.083	1.7	1.7	1.7	-4.4	1.6	1.2	1.6	-3.9	1.5	1.5	1.4	NA	1.6	1.3	1.2	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:ComprehensiveIncomeNetOfTax	▆▆▁▆▆▆█▆▆▆▆▇▆▆	-3.088	-2.173	-157.144	-5.701	-2.505	-1.426	58.598	0.969	1.934	-0.561	1.787	14.228	0.444	0.248	NA	2.844	13.169	1.002	NA	0.728	-0.642	-0.822	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:CostOfGoodsAndServicesSold	▆▇▆▆▆▆▁▇███▇██	32.596	34.452	28.12	29.481	28.459	27.825	-8.283	39.65	42.394	40.873	40.85	38.403	43.975	44.182	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:GeneralAndAdministrativeExpense	▆▅▅▇█▅▅▆▆▅▅▅▄▅▅▄▅▅▄▄▅▄▄▄▅▄▄▃▃▃▃▃▄▄▂▁▁▁	9.219	8.557	8.221	10.203	10.994	8.453	8.29	8.78	9.336	8.496	7.946	7.723	7.54	8.056	8.454	7.0	7.784	8.168	7.303	6.784	8.089	7.427	7.448	6.917	7.973	7.323	6.953	6.445	6.323	6.528	6.273	6.046	6.91	6.899	4.963	4.434	4.625	4.312	NA	4.723	4.346	4.173	4.586
us-gaap:GrossProfit	▅▃▁▅▅▄▅▇█▆▇▇▆▅▆▆▇▇▅▆▇▆▇▄▇▇▇▇▇▆▆▅▆▅▂▁▂▂▂▂▂▂▁	40.174	35.764	30.212	40.299	41.544	38.217	41.332	46.691	49.109	44.467	47.467	45.448	42.731	41.229	42.335	43.792	45.01	45.032	41.527	43.484	45.834	43.174	45.557	37.851	47.656	45.825	47.531	44.918	44.93	42.482	44.241	41.201	44.088	39.459	31.168	29.414	33.231	32.146	32.146	32.426	31.721	31.536	30.02
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	▇▇▁▇▇▇▇▇█▇██▇▇▇███▇▇▇▇▇▇█▇▇█▇▇▇▇█▇▇▇█▇	-5.173	-4.813	-156.909	-6.533	-3.302	-1.391	-18.035	1.079	2.731	-0.477	3.327	4.071	0.083	-0.016	-12.028	4.557	14.415	2.903	-2.863	1.012	-0.728	-0.674	0.152	-11.979	2.829	1.418	2.11	4.867	-0.086	-0.647	-0.8	-1.821	3.132	-1.154	-8.074	-2.88	3.569	2.103	NA	-2.46	5.07	5.135	2.953
us-gaap:IncomeTaxExpenseBenefit	▂▂▂▂▂▂▂▂▂▂▃▁▂▂▃▃▂▃█▂▂▂▂▁▃▃▃▂▂▂▂▂▃▂▂▂▃▂	-0.905	-0.545	0.158	-0.824	-0.566	-0.116	-4.422	0.283	0.591	-0.008	1.225	-9.948	-0.166	0.019	0.885	1.67	0.681	1.603	40.238	0.382	-0.366	0.083	0.74	-7.717	1.491	0.948	3.325	0.176	0.013	-0.221	0.068	-0.829	1.163	-0.433	-1.046	-1.112	1.24	0.73	NA	-1.599	1.259	1.856	1.065
us-gaap:InterestExpense	▂▂▂▂▁▃██▇▅▅▄▅▄▄▄▅▄▅▅▆▅▅▅▅▅▃▅▆▇▇▇█▇▂▁▁▁	0.235	0.215	0.235	0.166	0.041	0.465	1.41	1.442	1.33	0.917	0.839	0.74	0.76	0.723	0.668	0.635	0.813	0.723	0.789	0.809	0.998	0.8	0.746	0.859	0.793	0.799	0.534	0.917	0.959	1.246	1.285	1.271	1.383	1.332	0.179	0.102	0.111	0.116	NA	0.14	0.119	0.116	0.124
us-gaap:NetIncomeLoss	▆▆▁▆▆▆█▆▆▆▆▇▆▆▆▆▇▆▅▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆	-4.268	-4.268	-157.067	-5.709	-2.736	-1.275	58.873	0.796	2.14	-0.469	2.102	14.019	0.249	-0.035	-12.913	2.887	13.734	1.3	-43.075	0.63	-0.362	-0.757	-0.814	-4.262	1.338	0.47	-1.078	4.691	-0.099	-0.426	-0.868	-0.992	1.969	-0.721	-7.028	-1.768	2.329	1.373	1.373	-0.861	3.811	3.279	1.888
us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings	▄▄	-4.268	-4.268	NA	-5.709	-2.736	-1.275	NA	0.796	2.14	-0.469	2.102	14.019	0.249	-0.035	-12.913	2.887	13.734	1.3	-43.101	0.63	-0.362	-0.757	-0.814	-4.262	1.338	0.47	-1.495	5.108	-0.099	-0.426	-0.868	-0.992	1.969	-0.721	-7.028	-1.768	2.329	1.373	NA	NA	NA	NA	NA
us-gaap:NonoperatingIncomeExpense	▁█	-0.337	0.309	NA	-0.297	0.121	-0.563	NA	-1.708	-1.25	-0.803	NA	-0.789	-1.04	-0.156	NA	-0.583	-1.173	-0.669	NA	-1.021	NA	-0.917	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OperatingExpenses	▂▂█▂▂▁▁▂▂▂▂▂▂▂▂▁▁▂▂▂▂▂▂▂▂▂▂▁▂▂▂▂▁▁▁▁▁▁	45.01	40.886	186.823	46.535	44.967	39.045	32.223	43.904	45.128	44.141	43.032	40.588	41.608	41.089	53.668	38.652	29.422	41.46	45.88	40.797	44.517	42.104	44.202	48.002	43.081	42.583	43.826	38.28	43.356	41.195	43.012	41.143	38.966	38.775	38.016	32.171	29.305	29.429	NA	34.589	26.473	26.139	26.539
us-gaap:OperatingIncomeLoss	▇▇▁▇▇▇▇▇█▇██▇▇▇███▇▇▇▇▇▇█▇██▇▇▇▇█▇▇▇█▇	-4.836	-5.122	-156.611	-6.236	-3.423	-0.828	-16.49	2.787	3.981	0.326	4.435	4.86	1.123	0.14	-11.333	5.14	15.588	3.572	-4.056	2.687	1.317	1.07	1.129	-10.151	4.575	3.242	3.584	6.852	1.574	1.287	1.23	0.058	5.122	0.684	-6.848	-2.757	3.926	2.717	NA	-2.163	5.248	5.397	3.481
us-gaap:OtherComprehensiveIncomeLossNetOfTax	▁█	1.18	2.095	NA	0.008	0.231	-0.151	NA	0.173	-0.206	-0.092	-0.315	0.209	0.195	0.283	0.373	-0.044	-0.564	-0.298	0.264	0.134	-0.308	-0.047	0.328	-0.551	-0.101	0.026	0.075	0.178	-0.259	0.271	0.207	-0.039	0.195	-0.623	0.181	0.141	-0.247	-0.076	NA	NA	NA	NA	NA
us-gaap:OtherNonoperatingIncomeExpense	▇▇▆▇▇▇▁▆▇▇▃▇▆▇▄▇▅▇█▅▄▅▆▅▅▅▅▅▅▅▄▅▅▅▅▇▆▆	-0.102	0.524	-0.97	-0.131	0.162	-0.098	-5.234	-0.266	0.08	0.114	-3.331	-0.049	-0.28	0.567	-2.851	0.044	-1.173	0.05	1.193	-1.675	-2.045	-1.744	-0.977	-1.828	-1.746	-1.824	-1.474	-1.97	-1.66	-1.934	-2.03	-1.879	-1.99	-1.838	-1.226	-0.123	-0.357	-0.614	NA	-0.297	-0.178	-0.262	-0.528
us-gaap:ResearchAndDevelopmentExpense	█▇▅▆▅▃▃▅▅▅▄▄▃▄▄▃▃▄▄▃▃▃▄▄▃▄▄▄▄▄▄▃▄▄▂▁▂▂	9.712	9.009	7.232	8.395	7.764	6.292	6.023	7.21	7.363	7.662	6.454	6.457	6.107	6.441	6.696	5.951	5.913	6.709	6.864	5.808	6.179	6.202	6.551	6.855	6.069	6.718	6.753	7.045	7.003	6.709	6.438	5.793	7.014	7.074	5.222	4.574	5.125	5.591	NA	5.549	5.322	5.259	5.242
us-gaap:Revenues	▄▄▂▄▄▃▄▇█▇▇▆▇▇▇▇▇▇█▇▇▆▇▇█▇█▇▇▆▇▆▇▆▂▁▂▁▁▂▂▁▁	72.77	70.216	58.332	69.78	70.003	66.042	71.182	86.341	91.503	85.34	88.317	83.851	86.706	85.411	86.914	85.602	89.029	88.098	93.419	87.384	89.234	83.703	90.897	86.597	92.149	87.331	94.065	88.195	88.616	83.579	90.042	81.571	87.007	83.406	57.69	51.567	58.099	54.431	54.431	56.223	54.648	53.372	51.507
us-gaap:SellingAndMarketingExpense	▅▃▃▆▅▄▃▄▅▄▆▃▄▄▅▄▄▄█▅▅▅▆▄▆▅▆▆▆▅▅▄▄▄▂▁▁▁	20.174	17.705	18.207	20.934	20.113	19.38	17.714	19.413	20.269	19.433	20.898	18.009	18.967	19.402	20.338	19.469	19.524	19.488	23.294	20.301	20.569	20.559	21.151	19.355	20.983	20.067	21.464	20.7	21.073	19.963	20.387	18.52	18.671	18.543	16.547	15.802	15.847	16.308	NA	15.333	14.553	13.793	14.444

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:Assets	▄▄▄▆▆▅█▇▇▅▆▆▆▆▆▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▆▁▁▁	588.521	583.759	594.214	731.961	724.879	690.364	836.438	777.795	783.96	693.871	705.472	698.429	697.806	700.341	707.961	704.318	712.17	726.711	727.063	753.513	760.371	771.789	773.623	783.136	799.331	796.114	800.15	792.174	795.49	801.153	791.584	796.471	778.947	718.362	721.769	446.607	443.59	439.608	NA	437.421	NA	NA	NA
us-gaap:Liabilities	▄▄▄▄▃▂▇▇▇▄▅▅▅▅▆▅▆▆▆▆▆▇▇▇███▇████▇▆▆▁▁▁	134.178	128.705	139.342	121.486	111.069	76.291	221.623	223.716	234.397	148.982	162.877	160.101	176.586	182.457	192.934	172.568	188.821	213.994	219.835	202.768	212.732	224.666	228.601	239.38	255.76	256.43	262.256	254.485	265.761	272.708	264.754	269.114	252.259	194.483	198.249	35.244	32.745	30.307	NA	31.782	NA	NA	NA
us-gaap:LiabilitiesAndStockholdersEquity	▄▄▄▆▆▅█▇▇▅▆▆▆▆▆▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▆▁▁▁	588.521	583.759	594.214	731.961	724.879	690.364	836.438	777.795	783.96	693.871	705.472	698.429	697.806	700.341	707.961	704.318	712.17	726.711	727.063	753.513	760.371	771.789	773.623	783.136	799.331	796.114	800.15	792.174	795.49	801.153	791.584	796.471	778.947	718.362	721.769	446.607	443.59	439.608	NA	437.421	NA	NA	NA
us-gaap:StockholdersEquity	▃▃▃████▆▆▆▆▅▅▅▅▅▅▅▄▆▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▁▁▁	454.343	455.054	454.872	610.475	613.81	614.073	614.815	554.079	549.563	544.889	542.595	538.328	521.22	517.884	515.027	531.75	523.349	512.717	507.228	550.745	547.639	547.123	545.022	543.756	543.571	539.684	537.894	537.689	529.729	528.445	526.83	527.357	526.688	523.879	523.52	411.363	410.845	409.301	NA	405.639	NA	NA	NA

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:AssetsCurrent	▂▂▂▁▁▃█▂▂▁▃▂▂▂▂▂▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▄▄▄	149.704	142.238	152.913	129.046	131.976	166.357	315.292	142.74	142.957	120.885	168.032	156.569	152.495	150.722	153.914	145.051	147.802	152.282	146.254	149.401	151.558	160.025	155.813	157.292	163.446	154.305	152.228	140.131	141.573	145.234	141.516	146.44	151.463	160.591	159.238	211.049	205.836	199.866	NA	194.305	NA	NA	NA
us-gaap:CashAndCashEquivalentsAtCarryingValue	▃▂▂▂▂▃█▂▂▂▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂	58.025	47.929	54.435	27.16	41.247	83.649	227.641	41.704	42.82	24.762	74.096	52.292	49.856	48.2	47.544	35.571	35.664	37.411	32.333	21.897	18.996	20.268	18.391	19.704	14.877	13.808	16.105	7.382	15.173	22.065	21.802	16.625	19.322	18.896	23.508	34.047	42.955	50.493	NA	45.984	35.257	27.132	67.202
us-gaap:AccountsReceivableNetCurrent	▂▂▂▃▂▂▄▄▄▄▄▄▄▄▅▅▆▆▆▆▆▆▇▇▇▇█▇▅▅▅▅▅▅▅▁▂▁	33.604	33.59	31.263	35.619	33.994	32.54	43.577	44.208	43.374	40.164	39.401	41.827	42.073	41.283	44.523	46.302	50.171	50.124	52.867	54.446	53.118	52.424	58.428	57.77	58.556	56.026	62.148	57.726	48.405	46.561	47.791	45.11	47.085	45.428	48.588	26.723	31.451	26.365	NA	27.141	NA	NA	NA
us-gaap:InventoryNet	▄▅▆▅▄▄▃▅▄▄▄▅▅▅▅▅▅▅▅▇▇█▇▇█▇▆▆▆▆▅▆▆▆▅▁▁▁	49.582	52.762	59.905	54.898	50.239	45.229	40.071	52.388	50.637	49.721	48.916	56.564	54.032	55.425	54.506	57.681	56.667	58.274	55.37	65.792	70.813	74.327	67.388	68.71	75.315	70.421	61.056	59.834	60.052	59.249	55.062	61.973	62.33	63.414	55.823	28.158	29.427	29.672	NA	28.126	NA	NA	NA
us-gaap:InventoryFinishedGoods	▂▃▆▄▂▂▁▃▂▁▂▄▄▅▄▅▅▄▃▅▆▇▅▆█▆▄▄▄▅▅▇██▅	20.324	21.771	28.279	24.209	20.606	19.247	17.24	21.326	20.23	18.336	19.43	23.646	24.813	25.723	24.341	26.677	25.711	24.162	23.001	25.471	28.739	31.201	27.438	28.505	33.541	28.048	24.127	23.162	24.208	25.618	25.694	30.489	32.71	32.551	27.335	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent	▄▄▄▆▃▂▂▂▂▂▂▂▂▂▃▁▁▂▁▂▃▃▂▂▃▃▃▃▅▅▄█▆▇▅▅▃▂	8.493	7.957	7.31	11.369	6.496	4.939	4.003	4.44	4.776	4.888	4.302	4.502	4.842	4.287	5.79	3.985	3.453	4.258	3.243	4.683	5.869	6.385	4.783	4.859	6.753	6.777	5.975	6.999	9.387	8.993	8.117	13.824	11.343	11.849	9.826	9.353	5.788	4.315	NA	4.675	NA	NA	NA

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:AmortizationOfIntangibleAssets	▆▇▇▇▆▅▁██▅▅▅▅▅▆▆▆▅▆▆▆▆▇▇▅▅▅▅▆▆▆▆▅▄▁▁▁▁	4.593	4.953	4.704	5.019	4.53	3.868	2.41	5.342	5.188	4.116	4.202	4.191	4.146	4.096	4.414	4.36	4.291	4.235	4.608	4.458	4.483	4.415	4.73	5.106	4.061	4.015	3.926	4.248	4.339	4.284	4.384	4.314	4.107	3.737	2.492	2.32	2.3	2.295	NA	2.574	2.252	2.142	2.267
us-gaap:PropertyPlantAndEquipmentNet	▂▂▂▂▂▁▁▄▄▄▄▄▄▄▄▅▅▅▅▅▅▆▆▇█████▇▇▇▇▆▆▁▁▁	29.628	29.427	28.312	28.182	27.508	25.334	24.258	41.207	41.945	42.163	42.461	43.058	43.767	44.353	45.234	46.18	47.116	47.23	48.284	49.693	51.153	52.799	54.56	58.295	67.552	66.794	67.208	66.478	66.39	63.748	62.65	61.187	58.547	57.525	55.915	23.148	23.196	23.485	NA	23.804	NA	NA	NA
us-gaap:Goodwill	▁▁▁▆▆▆▆██▇	201.117	200.943	200.515	359.093	360.094	347.666	347.666	423.674	426.874	382.992	NA	361.252	361.252	361.252	361.252	361.252	361.252	361.252	361.252	361.252	361.252	361.252	361.252	360.473	360.473	360.473	360.294	359.736	359.736	359.736	355.458	356.692	337.19	307.171	308.912	161.951	161.951	161.951	NA	161.951	NA	NA	NA
us-gaap:IntangibleAssetsNetExcludingGoodwill	▇▇▇▇▇▅▅▆▆▅▄▅▅▅▅▅▅▆▆▆▆▆▇▇▇▇▇██████▅▅▁▁▁	190.559	194.318	197.136	201.956	196.325	141.655	145.387	166.564	168.706	144.194	130.31	134.512	137.437	141.583	145.675	150.078	154.439	162.342	166.577	168.08	172.511	177.399	181.806	186.547	197.362	201.44	205.256	207.97	212.195	216.355	214.848	219.238	212.303	143.538	147.266	41.53	43.691	45.705	NA	48.037	NA	NA	NA
us-gaap:FiniteLivedIntangibleAssetsNet	▇▇██▇▂▂▅▅▂▁▁▂▂▃▃▃	190.559	194.318	197.136	201.956	196.325	141.655	145.387	166.564	168.706	144.194	130.31	134.512	137.437	141.583	145.675	150.078	154.439	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OperatingLeaseRightOfUseAsset	▇██▇▁▂	9.421	9.99	10.146	9.628	4.603	5.104	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OtherAssetsNoncurrent	██▇▆▄▄▂▂▂▂▂▂▂▁▁▁▁▂▂▃▂▂▃▂▂▂▂▃▃▃▃▃▅▅▅▂▂▂	17.513	16.833	15.338	13.684	8.976	9.352	3.835	3.61	3.478	3.637	3.417	3.038	2.855	2.431	1.886	1.757	1.561	3.605	4.696	5.524	4.071	4.818	5.288	4.06	2.741	3.345	4.876	5.592	5.543	5.307	5.559	5.123	9.633	10.401	10.707	3.467	3.763	3.361	NA	2.823	NA	NA	NA

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:AccountsPayableCurrent	▃▂▄▃▃▃▅▃▄▃▃▃▄▃▃▂▂▃▃▃▄▅▅▄▅▇█▆▇▆▅▅▄▅▇▃▁▁	15.979	14.008	19.096	18.304	17.968	16.87	22.829	18.443	19.424	16.916	15.775	16.35	21.8	17.421	18.087	15.357	15.286	15.648	15.616	18.067	21.701	24.942	23.668	21.696	21.969	29.282	32.895	25.506	28.336	26.701	24.522	23.664	20.95	24.431	29.2	16.535	11.808	10.729	NA	11.391	NA	NA	NA
us-gaap:AccruedLiabilitiesCurrent	▅▄▆▅▅▄█▄▃▃▇▆▆▆█▃▃▃▄▂▂▂▃▃▃▂▂▃▂▂▂▃▄▃▃▁▂▁	27.61	23.587	29.38	27.445	28.478	22.693	38.338	21.929	21.272	19.9	34.426	30.973	30.8	32.264	38.804	20.753	20.908	19.214	21.896	17.979	16.975	15.166	18.331	19.946	19.177	17.7	16.762	18.966	17.53	16.499	16.426	20.576	22.75	20.448	18.722	12.364	14.522	13.093	NA	13.841	NA	NA	NA
us-gaap:LiabilitiesCurrent	▄▃▅▄▆▄█▅▅▄▆▅▆▇█▅▅▇▇▆▆▆▆▆▆▇█▆▇█▆▇▆▅▅▂▁▁	45.812	39.846	51.445	48.712	57.005	47.172	73.302	53.295	49.702	45.789	57.301	54.403	59.66	64.323	71.516	50.641	50.752	65.431	66.727	61.579	60.104	60.651	61.157	59.687	57.937	63.707	72.286	63.38	69.079	74.363	63.437	66.83	60.385	52.379	55.422	29.194	26.62	24.107	NA	25.507	NA	NA	NA
us-gaap:OperatingLeaseLiabilityCurrent	██▇▅▁▃	2.145	2.174	2.077	1.879	1.393	1.606	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OtherAccruedLiabilitiesCurrent	▄▅▄▄▄▃█▄▅▄▄▃▃▄▄▄▃▄▅▃▂▁▁▃▄▂▂▃▂▂▂▃▃▄▂	5.064	5.853	5.279	5.287	5.563	4.604	8.931	5.093	6.512	4.988	5.135	4.816	4.113	5.672	4.92	4.95	4.298	5.585	5.806	3.974	3.299	2.674	2.53	4.018	5.219	3.617	3.071	4.511	3.618	3.493	3.156	4.288	4.048	5.366	3.263	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OtherLiabilitiesCurrent	▃▃▃▃█▆▁	2.223	2.251	2.133	2.074	9.67	6.731	0.0	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0.0	0.05	0.1	0.15	0.2	NA	0.06	0.204	0.599	0.883	5.992	5.334	5.782	5.969	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:OtherLiabilitiesNoncurrent	██▇▇▃▄▁▅▅▁▁▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▂▁	10.17	10.048	9.029	8.015	3.492	3.8	0.521	5.296	5.221	0.595	0.621	0.789	0.809	0.829	0.85	1.0	1.083	1.1	0.908	0.917	0.775	0.784	0.0	0.0	0.124	0.032	0.084	0.188	0.185	0.673	0.475	0.236	0.68	1.479	0.327	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OperatingLeaseLiabilityNoncurrent	▇██▇▁▁	7.636	8.178	8.345	7.724	3.191	3.489	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:StockholdersEquity	▃▃▃████▆▆▆▆▅▅▅▅▅▅▅▄▆▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▁▁▁	454.343	455.054	454.872	610.475	613.81	614.073	614.815	554.079	549.563	544.889	542.595	538.328	521.22	517.884	515.027	531.75	523.349	512.717	507.228	550.745	547.639	547.123	545.022	543.756	543.571	539.684	537.894	537.689	529.729	528.445	526.83	527.357	526.688	523.879	523.52	411.363	410.845	409.301	NA	405.639	NA	NA	NA
us-gaap:CommonStockValue	█████████████████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▁▁▁	0.375	0.375	0.374	0.374	0.373	0.373	0.372	0.372	0.372	0.372	0.37	0.37	0.369	0.368	0.367	0.37	0.369	0.366	0.363	0.363	0.362	0.362	0.36	0.36	0.358	0.356	0.353	0.353	0.353	0.352	0.351	0.35	0.349	0.349	0.348	0.252	0.251	0.252	NA	0.25	NA	NA	NA
us-gaap:AdditionalPaidInCapitalCommonStock	████████▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▅▁▁▁	566.602	564.225	561.871	560.33	557.965	555.723	555.04	552.902	549.355	546.615	543.762	541.282	538.403	535.511	532.705	531.171	535.558	530.259	525.775	526.532	524.189	523.004	520.101	518.349	513.353	510.704	508.263	506.638	503.964	502.323	500.554	500.421	498.722	498.077	496.375	375.363	373.219	373.756	NA	371.393	NA	NA	NA
us-gaap:RetainedEarningsAccumulatedDeficit	▁▁▁████▆▆▆▆▅▅▅▅▅▅▅▅▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇	-108.854	-104.586	-100.318	56.749	62.458	65.194	66.469	7.596	6.8	4.66	5.129	3.027	-10.992	-11.24	-11.007	1.906	-0.981	-14.715	-16.015	27.744	27.114	27.476	28.233	29.047	33.309	31.971	32.651	34.146	29.038	29.137	29.563	30.431	31.423	29.454	30.175	37.203	38.971	36.642	NA	35.269	NA	NA	NA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax	█▆▂▂▂▂▂▃▂▃▃▃▃▃▂▁▁▃▃▁▁▂▂▁▂▂▂▂▂▂▂▁▁▁▂▂▂▂	1.934	0.754	-1.341	-1.264	-1.272	-1.503	-1.352	-1.077	-1.25	-1.044	-0.952	-0.637	-0.846	-1.041	-1.324	-1.697	-1.653	-1.089	-0.791	-1.79	-1.922	-1.615	-1.568	-1.896	-1.345	-1.243	-1.269	-1.344	-1.522	-1.263	-1.534	-1.741	-1.702	-1.897	-1.274	-1.455	-1.596	-1.349	NA	-1.273	NA	NA	NA
us-gaap:TreasuryStockValue	▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁█▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂	5.714	5.714	5.714	5.714	5.714	5.714	5.714	5.714	5.714	5.714	5.714	5.714	5.714	5.714	5.714	0.0	9.944	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	2.104	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	█▁	2.387	1.864	NA	1.772	2.242	1.984	NA	2.378	2.591	2.15	2.091	2.058	1.966	1.797	1.105	1.693	1.701	1.684	-1.26	1.64	1.234	1.626	1.609	1.488	1.506	1.395	1.389	1.599	1.271	1.152	1.237	0.997	1.199	1.176	1.092	1.121	1.078	0.799	NA	NA	NA	NA	NA

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:NetCashProvidedByUsedInOperatingActivities	▆▃▅▁▅▃█▅▆▂	11.448	-5.425	3.88	-17.837	5.937	-6.534	25.012	8.342	12.959	-8.873	NA	NA	NA	NA	NA	NA	NA	NA	18.544	12.394	9.579	4.699	11.363	12.231	-2.294	4.942	10.106	-0.584	8.458	7.3	11.368	10.0	11.129	-5.614	-1.005	6.789	2.669	3.044	NA	11.897	10.347	9.888	1.738
us-gaap:NetCashProvidedByUsedInInvestingActivities	▃▃▃▂▁▃█▃▁▁	-1.361	-1.824	-1.479	-11.742	-48.583	-1.541	168.427	0.463	-48.654	-37.682	NA	NA	NA	NA	NA	NA	NA	NA	-3.681	-2.745	-0.4	-0.743	-1.808	-4.269	-2.368	-4.848	NA	NA	-4.438	-6.769	-4.412	-11.387	-8.732	2.293	-150.92	-16.705	-8.451	-0.284	NA	-1.282	-3.455	-49.758	5.875
us-gaap:NetCashProvidedByUsedInFinancingActivities	▆▆▇▇▆▁▆▆█▆	-0.01	0.491	24.947	15.56	0.0	-135.749	-7.242	-10.081	53.899	-2.645	NA	NA	NA	NA	NA	NA	NA	NA	-4.496	-6.797	-10.299	-2.071	-11.106	-2.74	5.772	-2.391	NA	NA	-10.912	-0.272	-1.757	-1.255	-1.978	-1.296	141.335	0.992	-1.728	1.739	NA	0.105	1.229	-0.197	0.785
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	█▁	10.096	-6.506	NA	NA	-42.402	-143.992	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:DeferredIncomeTaxExpenseBenefit	▂▂▂▂▂▂▂▂▂▂▃▁▂▂▃▃▂▃█▂▂▂▂▁▃▃▃▃▂▂▂▃▃▂▂▂▂▃	-0.933	-0.62	0.038	-0.872	-0.559	-0.175	-4.606	0.138	0.505	-0.01	1.203	-10.044	-0.024	-0.082	0.804	1.554	0.505	1.565	40.356	0.234	-0.412	-0.195	-0.973	-7.823	1.575	2.11	0.95	0.993	0.688	0.538	-2.244	1.244	2.26	-0.085	-0.405	-1.305	0.147	0.911	NA	-3.277	0.152	1.41	0.875
us-gaap:IncreaseDecreaseInAccountsReceivable	▅▆▃▅▅▁▅▅▆▅▄▅▅▄▄▄▅▄▅▆▅▃▅▅▆▃▇█▅▄▆▄▅▄▆▃▇▅	-0.425	2.706	-4.084	1.63	2.01	-11.474	-0.676	0.785	2.506	0.562	-2.147	-0.598	0.804	-3.103	-1.581	-3.855	-0.221	-2.822	-0.639	2.416	1.017	-5.925	1.44	-0.466	2.746	-5.815	5.163	9.59	1.961	-1.858	2.786	-2.43	1.698	-3.195	2.868	-4.887	5.237	-0.722	NA	-1.33	2.717	2.049	-6.206
us-gaap:IncreaseDecreaseInInventories	▃▂▆▆▆▆▄▅▄▅▂▅▄▅▃▅▄▅▁▃▃▇▄▂▆▇▅▄▅▆▂▄▄█▅▄▄▅	-3.281	-7.247	4.809	4.027	4.856	5.153	-1.274	1.747	0.194	0.761	-7.653	2.511	-1.379	0.781	-3.272	1.027	-1.491	3.049	-10.519	-4.93	-3.449	6.922	-1.322	-6.605	4.894	9.187	1.222	-0.143	0.878	3.49	-7.559	-0.484	-1.084	11.036	0.814	-1.269	-0.181	1.727	NA	-1.363	-3.57	-0.52	4.035
us-gaap:NetCashProvidedByUsedInOperatingActivities	▆▃▅▁▅▃█▅▆▂	11.448	-5.425	3.88	-17.837	5.937	-6.534	25.012	8.342	12.959	-8.873	NA	NA	NA	NA	NA	NA	NA	NA	18.544	12.394	9.579	4.699	11.363	12.231	-2.294	4.942	10.106	-0.584	8.458	7.3	11.368	10.0	11.129	-5.614	-1.005	6.789	2.669	3.044	NA	11.897	10.347	9.888	1.738
us-gaap:NetIncomeLoss	▆▆▁▆▆▆█▆▆▆▆▇▆▆▆▆▇▆▅▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆	-4.268	-4.268	-157.067	-5.709	-2.736	-1.275	58.873	0.796	2.14	-0.469	2.102	14.019	0.249	-0.035	-12.913	2.887	13.734	1.3	-43.075	0.63	-0.362	-0.757	-0.814	-4.262	1.338	0.47	-1.078	4.691	-0.099	-0.426	-0.868	-0.992	1.969	-0.721	-7.028	-1.768	2.329	1.373	1.373	-0.861	3.811	3.279	1.888
us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings	▄▄	-4.268	-4.268	NA	-5.709	-2.736	-1.275	NA	0.796	2.14	-0.469	2.102	14.019	0.249	-0.035	-12.913	2.887	13.734	1.3	-43.101	0.63	-0.362	-0.757	-0.814	-4.262	1.338	0.47	-1.495	5.108	-0.099	-0.426	-0.868	-0.992	1.969	-0.721	-7.028	-1.768	2.329	1.373	NA	NA	NA	NA	NA
us-gaap:ShareBasedCompensation	█▇▆▇▇▇▇██▇▇▇▇▇▅▆▆▆▁▆▆▆▆▆▆▆▆▆▆▅▆▅▆▅▅▅▅▅	2.387	1.864	1.594	1.772	2.242	1.984	2.13	2.378	2.591	2.15	2.091	2.058	1.966	1.797	1.105	1.693	1.701	1.684	-1.26	1.64	1.234	1.626	1.609	1.488	1.506	1.395	1.389	1.599	1.271	1.152	1.237	0.997	1.253	1.122	1.092	1.121	1.078	0.799	NA	1.207	1.148	1.035	1.219

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:NetCashProvidedByUsedInInvestingActivities	▃▃▃▂▁▃█▃▁▁	-1.361	-1.824	-1.479	-11.742	-48.583	-1.541	168.427	0.463	-48.654	-37.682	NA	NA	NA	NA	NA	NA	NA	NA	-3.681	-2.745	-0.4	-0.743	-1.808	-4.269	-2.368	-4.848	NA	NA	-4.438	-6.769	-4.412	-11.387	-8.732	2.293	-150.92	-16.705	-8.451	-0.284	NA	-1.282	-3.455	-49.758	5.875
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment	▂▃▃▃▄▂▂▂▁▁▁▁▁▁▁▁▂▁▁▁▁▁▂▆▄█▅▃▇▅▇▅▆▂▁▂▁▁	1.361	1.824	1.479	1.742	2.623	1.391	0.815	0.887	0.734	0.682	0.744	0.425	0.721	0.501	0.743	0.412	1.365	0.481	0.431	0.727	0.425	0.743	0.902	3.515	2.419	5.104	2.768	1.812	4.288	2.903	4.412	2.921	3.819	0.968	0.613	0.821	0.517	0.541	NA	0.985	0.483	0.827	0.662

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
us-gaap:NetCashProvidedByUsedInFinancingActivities	▆▆▇▇▆▁▆▆█▆	-0.01	0.491	24.947	15.56	0.0	-135.749	-7.242	-10.081	53.899	-2.645	NA	NA	NA	NA	NA	NA	NA	NA	-4.496	-6.797	-10.299	-2.071	-11.106	-2.74	5.772	-2.391	NA	NA	-10.912	-0.272	-1.757	-1.255	-1.978	-1.296	141.335	0.992	-1.728	1.739	NA	0.105	1.229	-0.197	0.785

		2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31

Common Stock Value

us-gaap:CommonStockValue

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	375000.0	375000.0	374000.0	374000.0	373000.0	373000.0	372000.0	372000.0	372000.0	372000.0	370000.0	370000.0	369000.0	368000.0	367000.0	370000.0	369000.0	366000.0	363000.0	363000.0	362000.0	362000.0	360000.0	360000.0	358000.0	356000.0	353000.0	353000.0	353000.0	352000.0	351000.0	350000.0	349000.0	349000.0	348000.0	252000.0	251000.0	252000.0	250000.0
Percentage of CommonStockValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.1	0.1	0.1

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock

Period End	2020-11-30	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	38702	38	38	38	38	37	37	37	37	37	37	37	37	37	36	37	36	36	36	36	36	36	36	35	35	35	35	35	35	35	35	34	34	34	25	25	25	24	24	24
Percentage of SharesIssued	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-02-29	2015-11-30	2015-08-31	2015-02-28	2014-11-30	2014-08-31	2014-02-28	2013-11-30	2013-08-31	2013-02-28	2012-11-30	2012-08-31	2012-02-29	2011-11-30	2011-08-31	2011-02-28	2010-11-30	2010-08-31
Value	38	38	37	37	37	38	38	37	37	37	36	37	37	36	36	36	35	35	36	35	35	35	34	34	35	34	25	25	25	25	25	25
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-02-29	2015-11-30	2015-08-31	2015-02-28	2014-11-30	2014-08-31	2014-02-28	2013-11-30	2013-08-31	2013-02-28	2012-11-30	2012-08-31	2012-02-29	2011-11-30	2011-08-31	2011-02-28	2010-11-30	2010-08-31
Value	38	38	37	37	37	37	37	37	37	37	36	36	36	36	36	36	35	35	35	35	35	35	34	34	34	34	25	25	25	24	24	24
Percentage of WeightedAverageNumberOfSharesOutstandingBasic	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-02-29	2015-11-30	2015-08-31	2015-02-28	2014-11-30	2014-08-31	2014-02-28	2013-11-30	2013-08-31	2013-02-28	2012-11-30	2012-08-31	2012-02-29	2011-11-30	2011-08-31
Value	3.133	3.18	2.699	2.694	2.503	2.293	2.384	2.309	1.259	1.124	1.085	1.04	0.98	1.503	3.394	3.161	3.241	0.362	0.8	0.9	0.7	2.3	2.8	2.9	3.2	2.922983	2.4	2.4	1.946509
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-0.11	-0.11	-4.14	-0.15	-0.07	-0.03	1.57	0.02	0.06	-0.01	0.06	0.38	0.01	0	-0.35	0.08	0.37	0.04	-1.19	0.02	-0.01	-0.02	-0.02	-0.12	0.04	0.01	-0.03	0.14	0	-0.01	-0.03	-0.03	0.06	-0.02	-0.27	-0.07	0.09	0.05	0.05	-0.03	0.15	0.13	0.08
Percentage of EarningsPerShareBasic	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-0.11	-0.11	-4.14	-0.15	-0.07	-0.03	1.54	0.02	0.06	-0.01	0.06	0.37	0.01	0	-0.35	0.08	0.37	0.04	-1.19	0.02	-0.01	-0.02	-0.02	-0.12	0.04	0.01	-0.03	0.13	0	-0.01	-0.03	-0.03	0.06	-0.02	-0.27	-0.07	0.09	0.05	0.05	-0.04	0.15	0.13	0.08
Percentage of EarningsPerShareDiluted	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-02-28	2013-11-30	2013-08-31
Value	2400000.0	1900000.0	1593000.0	1800000.0	2200000.0	1900000.0	2149000.0	2400000.0	2600000.0	2200000.0	2112000.0	2100000.0	2000000.0	1800000.0	1083000.0	1700000.0	1700000.0	1700000.0	-4400000.0	1600000.0	1200000.0	1600000.0	-3900000.0	1500000.0	1500000.0	1400000.0	1600000.0	1300000.0	1200000.0
Percentage of AllocatedShareBasedCompensationExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	3.3	2.7	2.7	2.6	3.1	2.9	3.0	2.8	2.8	2.6	2.4	2.5	2.3	2.1	1.2	2.0	1.9	1.9	-4.7	1.8	1.3	1.9	-4.3	1.7	1.6	1.6	1.8	1.5	1.4

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-02-29	2015-11-30	2015-08-31
Value	-3.088	-2.173	-157.144	-5.701	-2.505	-1.426	58	0.969	1.934	-0.561	1.787	14	0.444	0.248	2.844	13	1.002	0.728	-0.642	-0.822
Percentage of ComprehensiveIncomeNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-4.2	-3.1	-269.4	-8.2	-3.6	-2.2	82.3	1.1	2.1	-0.7	2.0	17.0	0.5	0.3	3.3	14.8	1.1	0.8	-0.7	-1.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31
Value	32	34	28	29	28	27	-8.283	39	42	40	40	38	43	44
Percentage of CostOfGoodsAndServicesSold	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	44.8	49.1	48.2	42.2	40.7	42.1	-11.6	45.9	46.3	47.9	46.3	45.8	50.7	51.7

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	9.219	8.557	8.221	10	10	8.453	8.29	8.78	9.336	8.496	7.946	7.723	7.54	8.056	8.454	7.0	7.784	8.168	7.303	6.784	8.089	7.427	7.448	6.917	7.973	7.323	6.953	6.445	6.323	6.528	6.273	6.046	6.91	6.899	4.963	4.434	4.625	4.312	4.723	4.346	4.173	4.586
Percentage of GeneralAndAdministrativeExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	12.7	12.2	14.1	14.6	15.7	12.8	11.6	10.2	10.2	10.0	9.0	9.2	8.7	9.4	9.7	8.2	8.7	9.3	7.8	7.8	9.1	8.9	8.2	8.0	8.7	8.4	7.4	7.3	7.1	7.8	7.0	7.4	7.9	8.3	8.6	8.6	8.0	7.9	8.4	8.0	7.8	8.9

Gross Profit

us-gaap:GrossProfit

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	40	35	30	40	41	38	41	46	49	44	47	45	42	41	42	43	45	45	41	43	45	43	45	37	47	45	47	44	44	42	44	41	44	39	31	29	33	32	32	32	31	31	30
Percentage of GrossProfit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	55.2	50.9	51.8	57.8	59.3	57.9	58.1	54.1	53.7	52.1	53.7	54.2	49.3	48.3	48.7	51.2	50.6	51.1	44.5	49.8	51.4	51.6	50.1	43.7	51.7	52.5	50.5	50.9	50.7	50.8	49.1	50.5	50.7	47.3	54.0	57.0	57.2	59.1	59.1	57.7	58.0	59.1	58.3

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-5.173	-4.813	-156.909	-6.533	-3.302	-1.391	-18.035	1.079	2.731	-0.477	3.327	4.071	0.083	-0.016	-12.028	4.557	14	2.903	-2.863	1.012	-0.728	-0.674	0.152	-11.979	2.829	1.418	2.11	4.867	-0.086	-0.647	-0.8	-1.821	3.132	-1.154	-8.074	-2.88	3.569	2.103	-2.46	5.07	5.135	2.953
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-7.1	-6.9	-269.0	-9.4	-4.7	-2.1	-25.3	1.2	3.0	-0.6	3.8	4.9	0.1	-0.0	-13.8	5.3	16.2	3.3	-3.1	1.2	-0.8	-0.8	0.2	-13.8	3.1	1.6	2.2	5.5	-0.1	-0.8	-0.9	-2.2	3.6	-1.4	-14.0	-5.6	6.1	3.9	-4.4	9.3	9.6	5.7

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-0.905	-0.545	0.158	-0.824	-0.566	-0.116	-4.422	0.283	0.591	-0.008	1.225	-9.948	-0.166	0.019	0.885	1.67	0.681	1.603	40	0.382	-0.366	0.083	0.74	-7.717	1.491	0.948	3.325	0.176	0.013	-0.221	0.068	-0.829	1.163	-0.433	-1.046	-1.112	1.24	0.73	-1.599	1.259	1.856	1.065
Percentage of IncomeTaxExpenseBenefit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-1.2	-0.8	0.3	-1.2	-0.8	-0.2	-6.2	0.3	0.6	-0.0	1.4	-11.9	-0.2	0.0	1.0	2.0	0.8	1.8	43.1	0.4	-0.4	0.1	0.8	-8.9	1.6	1.1	3.5	0.2	0.0	-0.3	0.1	-1.0	1.3	-0.5	-1.8	-2.2	2.1	1.3	-2.8	2.3	3.5	2.1

Interest Expense

us-gaap:InterestExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	235000.0	215000.0	235000.0	166000.0	41000.0	465000.0	1410000.0	1442000.0	1330000.0	917000.0	839000.0	740000.0	760000.0	723000.0	668000.0	635000.0	813000.0	723000.0	789000.0	809000.0	998000.0	800000.0	746000.0	859000.0	793000.0	799000.0	534000.0	917000.0	959000.0	1246000.0	1285000.0	1271000.0	1383000.0	1332000.0	179000.0	102000.0	111000.0	116000.0	140000.0	119000.0	116000.0	124000.0
Percentage of InterestExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	0.3	0.3	0.4	0.2	0.1	0.7	2.0	1.7	1.5	1.1	0.9	0.9	0.9	0.8	0.8	0.7	0.9	0.8	0.8	0.9	1.1	1.0	0.8	1.0	0.9	0.9	0.6	1.0	1.1	1.5	1.4	1.6	1.6	1.6	0.3	0.2	0.2	0.2	0.2	0.2	0.2	0.2

Net Income Loss

us-gaap:NetIncomeLoss

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-4.268	-4.268	-157.067	-5.709	-2.736	-1.275	58	0.796	2.14	-0.469	2.102	14	0.249	-0.035	-12.913	2.887	13	1.3	-43.075	0.63	-0.362	-0.757	-0.814	-4.262	1.338	0.47	-1.078	4.691	-0.099	-0.426	-0.868	-0.992	1.969	-0.721	-7.028	-1.768	2.329	1.373	1.373	-0.861	3.811	3.279	1.888
Percentage of NetIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-5.9	-6.1	-269.3	-8.2	-3.9	-1.9	82.7	0.9	2.3	-0.5	2.4	16.7	0.3	-0.0	-14.9	3.4	15.4	1.5	-46.1	0.7	-0.4	-0.9	-0.9	-4.9	1.5	0.5	-1.1	5.3	-0.1	-0.5	-1.0	-1.2	2.3	-0.9	-12.2	-3.4	4.0	2.5	2.5	-1.5	7.0	6.1	3.7

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31
Value	-4.268	-4.268	-5.709	-2.736	-1.275	0.796	2.14	-0.469	2.102	14	0.249	-0.035	-12.913	2.887	13	1.3	-43.101	0.63	-0.362	-0.757	-0.814	-4.262	1.338	0.47	-1.495	5.108	-0.099	-0.426	-0.868	-0.992	1.969	-0.721	-7.028	-1.768	2.329	1.373
Percentage of NetIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.1	100.0	100.0	100.0	100.0	100.0	100.0	100.0	138.7	108.9	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-5.9	-6.1	-8.2	-3.9	-1.9	0.9	2.3	-0.5	2.4	16.7	0.3	-0.0	-14.9	3.4	15.4	1.5	-46.1	0.7	-0.4	-0.9	-0.9	-4.9	1.5	0.5	-1.6	5.8	-0.1	-0.5	-1.0	-1.2	2.3	-0.9	-12.2	-3.4	4.0	2.5
Percentage of Revenues us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-02-29	2015-08-31
Value	-337000.0	309000.0	-297000.0	121000.0	-563000.0	-1708000.0	-1250000.0	-803000.0	-789000.0	-1040000.0	-156000.0	-583000.0	-1173000.0	-669000.0	-1021000.0	-917000.0
Percentage of NonoperatingIncomeExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-0.5	0.4	-0.4	0.2	-0.9	-2.0	-1.4	-0.9	-0.9	-1.2	-0.2	-0.7	-1.3	-0.8	-1.2	-1.1

Operating Expenses

us-gaap:OperatingExpenses

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	45	40	186	46	44	39	32	43	45	44	43	40	41	41	53	38	29	41	45	40	44	42	44	48	43	42	43	38	43	41	43	41	38	38	38	32	29	29	34	26	26	26
Percentage of OperatingExpenses	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	61.9	58.2	320.3	66.7	64.2	59.1	45.3	50.8	49.3	51.7	48.7	48.4	48.0	48.1	61.7	45.2	33.0	47.1	49.1	46.7	49.9	50.3	48.6	55.4	46.8	48.8	46.6	43.4	48.9	49.3	47.8	50.4	44.8	46.5	65.9	62.4	50.4	54.1	61.5	48.4	49.0	51.5

Operating Income Loss

us-gaap:OperatingIncomeLoss

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-4.836	-5.122	-156.611	-6.236	-3.423	-0.828	-16.49	2.787	3.981	0.326	4.435	4.86	1.123	0.14	-11.333	5.14	15	3.572	-4.056	2.687	1.317	1.07	1.129	-10.151	4.575	3.242	3.584	6.852	1.574	1.287	1.23	0.058	5.122	0.684	-6.848	-2.757	3.926	2.717	-2.163	5.248	5.397	3.481
Percentage of OperatingIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-6.6	-7.3	-268.5	-8.9	-4.9	-1.3	-23.2	3.2	4.4	0.4	5.0	5.8	1.3	0.2	-13.0	6.0	17.5	4.1	-4.3	3.1	1.5	1.3	1.2	-11.7	5.0	3.7	3.8	7.8	1.8	1.5	1.4	0.1	5.9	0.8	-11.9	-5.3	6.8	5.0	-3.8	9.6	10.1	6.8

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31
Value	1180000.0	2095000.0	8000.0	231000.0	-151000.0	173000.0	-206000.0	-92000.0	-315000.0	209000.0	195000.0	283000.0	373000.0	-44000.0	-564000.0	-298000.0	264000.0	134000.0	-308000.0	-47000.0	328000.0	-551000.0	-101000.0	26000.0	75000.0	178000.0	-259000.0	271000.0	207000.0	-39000.0	195000.0	-623000.0	181000.0	141000.0	-247000.0	-76000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	1.6	3.0	0.0	0.3	-0.2	0.2	-0.2	-0.1	-0.4	0.2	0.2	0.3	0.4	-0.1	-0.6	-0.3	0.3	0.2	-0.3	-0.1	0.4	-0.6	-0.1	0.0	0.1	0.2	-0.3	0.3	0.2	-0.0	0.2	-0.7	0.3	0.3	-0.4	-0.1

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31
Value	1180000.0	2095000.0	8000.0	231000.0	-151000.0	173000.0	-206000.0	-92000.0	-315000.0	209000.0	195000.0	283000.0	373000.0	-44000.0	-564000.0	-298000.0	264000.0	132000.0	-307000.0	-47000.0	328000.0	-551000.0	-102000.0	26000.0	75000.0	178000.0	-259000.0	271000.0	207000.0	-39000.0	195000.0	-623000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	98.5	99.7	100.0	100.0	100.0	101.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	1.6	3.0	0.0	0.3	-0.2	0.2	-0.2	-0.1	-0.4	0.2	0.2	0.3	0.4	-0.1	-0.6	-0.3	0.3	0.2	-0.3	-0.1	0.4	-0.6	-0.1	0.0	0.1	0.2	-0.3	0.3	0.2	-0.0	0.2	-0.7
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-102000.0	524000.0	-970000.0	-131000.0	162000.0	-98000.0	-5234000.0	-266000.0	80000.0	114000.0	-3331000.0	-49000.0	-280000.0	567000.0	-2851000.0	44000.0	-1173000.0	50000.0	1193000.0	-1675000.0	-2045000.0	-1744000.0	-977000.0	-1828000.0	-1746000.0	-1824000.0	-1474000.0	-1970000.0	-1660000.0	-1934000.0	-2030000.0	-1879000.0	-1990000.0	-1838000.0	-1226000.0	-123000.0	-357000.0	-614000.0	-297000.0	-178000.0	-262000.0	-528000.0
Percentage of OtherNonoperatingIncomeExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-0.1	0.7	-1.7	-0.2	0.2	-0.1	-7.4	-0.3	0.1	0.1	-3.8	-0.1	-0.3	0.7	-3.3	0.1	-1.3	0.1	1.3	-1.9	-2.3	-2.1	-1.1	-2.1	-1.9	-2.1	-1.6	-2.2	-1.9	-2.3	-2.3	-2.3	-2.3	-2.2	-2.1	-0.2	-0.6	-1.1	-0.5	-0.3	-0.5	-1.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	9.712	9.009	7.232	8.395	7.764	6.292	6.023	7.21	7.363	7.662	6.454	6.457	6.107	6.441	6.696	5.951	5.913	6.709	6.864	5.808	6.179	6.202	6.551	6.855	6.069	6.718	6.753	7.045	7.003	6.709	6.438	5.793	7.014	7.074	5.222	4.574	5.125	5.591	5.549	5.322	5.259	5.242
Percentage of ResearchAndDevelopmentExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	13.3	12.8	12.4	12.0	11.1	9.5	8.5	8.4	8.0	9.0	7.3	7.7	7.0	7.5	7.7	7.0	6.6	7.6	7.3	6.6	6.9	7.4	7.2	7.9	6.6	7.7	7.2	8.0	7.9	8.0	7.1	7.1	8.1	8.5	9.1	8.9	8.8	10.3	9.9	9.7	9.9	10.2

Revenues

us-gaap:Revenues

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	72	70	58	69	70	66	71	86	91	85	88	83	86	85	86	85	89	88	93	87	89	83	90	86	92	87	94	88	88	83	90	81	87	83	57	51	58	54	54	56	54	53	51
Percentage of Revenues	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:Revenues us-gaap:ProductOrService

ango:Oncology

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31
Value	14	12	12	14	16	13	15	13	15	11	12	12	12
Percentage of Revenues	20.5	17.5	21.5	20.9	23.0	21.2	21.5	16.1	16.7	13.5	14.4	14.7	14.4
Percentage of Revenues	20.5	17.5	21.5	20.9	23.0	21.2	21.5	16.1	16.7	13.5	14.4	14.7	14.4
Percentage of Revenues ango:Oncology	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:VascularAccess

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-02-29	2015-11-30	2015-08-31	2015-02-28	2014-11-30	2014-08-31	2014-02-28	2013-11-30	2013-08-31	2013-02-28	2012-11-30	2012-08-31	2012-02-29	2011-11-30	2011-08-31
Value	23	28	23	24	22	23	24	22	23	23	23	22	23	23	23	25	24	25	24	26	27	26	27	25	25	26	26	26	15	15	15
Percentage of Revenues	32.9	40.0	40.7	35.3	32.5	35.1	34.9	25.9	25.9	27.9	27.8	26.0	27.2	27.7	26.5	28.4	28.5	28.0	29.4	30.5	30.4	30.4	30.9	28.9	30.2	32.4	30.7	31.9	29.2	26.2	28.7
Percentage of Revenues	32.9	40.0	40.7	35.3	32.5	35.1	34.9	25.9	25.9	27.9	27.8	26.0	27.2	27.7	26.5	28.4	28.5	28.0	29.4	30.5	30.4	30.4	30.9	28.9	30.2	32.4	30.7	31.9	29.2	26.2	28.7
Percentage of Revenues ango:VascularAccess	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:VascularInterventionsandTherapies

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31
Value	33	29	22	30	31	28	-32.702	50	52	49	48	51	49
Percentage of Revenues	46.6	42.5	37.9	43.8	44.5	43.8	-45.9	58.0	57.4	58.6	57.9	59.2	58.4
Percentage of Revenues	46.6	42.5	37.9	43.8	44.5	43.8	-45.9	58.0	57.4	58.6	57.9	59.2	58.4
Percentage of Revenues ango:VascularInterventionsandTherapies	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:Revenues us-gaap:ProductOrService, us-gaap:StatementGeographical

ango:Oncology, country:US

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31
Value	9.834	7.905	6.796	8.083	9.391	7.977	8.25	8.154	8.976	5.198
Percentage of Revenues	13.5	11.3	11.7	11.6	13.4	12.1	11.6	9.4	9.8	6.1
Percentage of Revenues	13.5	11.3	11.7	11.6	13.4	12.1	11.6	9.4	9.8	6.1
Percentage of Revenues ango:Oncology country:US	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:Oncology, us-gaap:NonUs

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31
Value	5.106	4.349	5.732	6.503	6.678	5.993	7.033	5.724	6.31	6.357
Percentage of Revenues	7.0	6.2	9.8	9.3	9.5	9.1	9.9	6.6	6.9	7.4
Percentage of Revenues	7.0	6.2	9.8	9.3	9.5	9.1	9.9	6.6	6.9	7.4
Percentage of Revenues ango:Oncology us-gaap:NonUs	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:VascularAccess, country:US

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31
Value	20	19	18	20	18	19	20	18	20	20
Percentage of Revenues	27.7	27.4	32.4	28.7	26.5	29.2	28.3	22.0	21.9	24.0
Percentage of Revenues	27.7	27.4	32.4	28.7	26.5	29.2	28.3	22.0	21.9	24.0
Percentage of Revenues ango:VascularAccess country:US	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:VascularAccess, us-gaap:NonUs

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31
Value	3.769	8.883	4.811	4.624	4.221	3.875	4.738	3.396	3.642	3.343
Percentage of Revenues	5.2	12.7	8.2	6.6	6.0	5.9	6.7	3.9	4.0	3.9
Percentage of Revenues	5.2	12.7	8.2	6.6	6.0	5.9	6.7	3.9	4.0	3.9
Percentage of Revenues ango:VascularAccess us-gaap:NonUs	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:VascularInterventionsandTherapies, country:US

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31
Value	30	26	18	26	27	25	-19.322	41	42	42
Percentage of Revenues	42.2	38.4	32.4	38.4	39.4	38.9	-27.1	47.7	46.8	49.3
Percentage of Revenues	42.2	38.4	32.4	38.4	39.4	38.9	-27.1	47.7	46.8	49.3
Percentage of Revenues ango:VascularInterventionsandTherapies country:US	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:VascularInterventionsandTherapies, us-gaap:NonUs

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31
Value	3.211	2.876	3.19	3.764	3.549	3.237	-13.38	8.89	9.668	7.956
Percentage of Revenues	4.4	4.1	5.5	5.4	5.1	4.9	-18.8	10.3	10.6	9.3
Percentage of Revenues	4.4	4.1	5.5	5.4	5.1	4.9	-18.8	10.3	10.6	9.3
Percentage of Revenues ango:VascularInterventionsandTherapies us-gaap:NonUs	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:Revenues us-gaap:StatementGeographical

country:US

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31
Value	60	54	44	54	55	52	9.059	68	71	67	70	65	68	68	67	71	65	69	67	47	43	49	47
Percentage of Revenues	83.4	77.1	76.5	78.7	79.4	80.2	12.7	79.1	78.6	79.3	79.6	78.5	78.8	80.7	80.3	79.1	80.8	80.1	81.4	82.5	84.6	85.5	86.9
Percentage of Revenues	83.4	77.1	76.5	78.7	79.4	80.2	12.7	79.1	78.6	79.3	79.6	78.5	78.8	80.7	80.3	79.1	80.8	80.1	81.4	82.5	84.6	85.5	86.9
Percentage of Revenues country:US	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:NonUs

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31
Value	12	16	13	14	14	13	-1.609	18	19	17	18	18	16
Percentage of Revenues	16.6	22.9	23.5	21.3	20.6	19.8	-2.3	20.9	21.4	20.7	21.5	21.2	19.3
Percentage of Revenues	16.6	22.9	23.5	21.3	20.6	19.8	-2.3	20.9	21.4	20.7	21.5	21.2	19.3
Percentage of Revenues us-gaap:NonUs	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	20	17	18	20	20	19	17	19	20	19	20	18	18	19	20	19	19	19	23	20	20	20	21	19	20	20	21	20	21	19	20	18	18	18	16	15	15	16	15	14	13	14
Percentage of SellingAndMarketingExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	27.7	25.2	31.2	30.0	28.7	29.3	24.9	22.5	22.2	22.8	23.7	21.5	21.9	22.7	23.4	22.7	21.9	22.1	24.9	23.2	23.1	24.6	23.3	22.4	22.8	23.0	22.8	23.5	23.8	23.9	22.6	22.7	21.5	22.2	28.7	30.6	27.3	30.0	27.3	26.6	25.8	28.0

Assets

us-gaap:Assets

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	588	583	594	731	724	690	836	777	783	693	705	698	697	700	707	704	712	726	727	753	760	771	773	783	799	796	800	792	795	801	791	796	778	718	721	446	443	439	437
Percentage of Assets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Liabilities

us-gaap:Liabilities

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	134	128	139	121	111	76	221	223	234	148	162	160	176	182	192	172	188	213	219	202	212	224	228	239	255	256	262	254	265	272	264	269	252	194	198	35	32	30	31
Percentage of Liabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	22.8	22.0	23.4	16.6	15.3	11.1	26.5	28.8	29.9	21.5	23.1	22.9	25.3	26.1	27.3	24.5	26.5	29.4	30.2	26.9	28.0	29.1	29.5	30.6	32.0	32.2	32.8	32.1	33.4	34.0	33.4	33.8	32.4	27.1	27.5	7.9	7.4	6.9	7.3

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	588	583	594	731	724	690	836	777	783	693	705	698	697	700	707	704	712	726	727	753	760	771	773	783	799	796	800	792	795	801	791	796	778	718	721	446	443	439	437
Percentage of LiabilitiesAndStockholdersEquity	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Stockholders Equity

us-gaap:StockholdersEquity

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	454	455	454	610	613	614	614	554	549	544	542	538	521	517	515	531	523	512	507	550	547	547	545	543	543	539	537	537	529	528	526	527	526	523	523	411	410	409	405	391	372
Percentage of StockholdersEquity	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	77.2	78.0	76.6	83.4	84.7	88.9	73.5	71.2	70.1	78.5	76.9	77.1	74.7	73.9	72.7	75.5	73.5	70.6	69.8	73.1	72.0	70.9	70.5	69.4	68.0	67.8	67.2	67.9	66.6	66.0	66.6	66.2	67.6	72.9	72.5	92.1	92.6	93.1	92.7	0.0	0.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	1.934	0.754	-1.341	-1.264	-1.272	-1.503	-1.352	-1.077	-1.25	-1.044	-0.952	-0.637	-0.846	-1.041	-1.324	-1.697	-1.653	-1.089	-0.791	-1.79	-1.922	-1.615	-1.568	-1.896	-1.345	-1.243	-1.269	-1.344	-1.522	-1.263	-1.534	-1.741	-1.702	-1.897	-1.274	-1.455	-1.596	-1.349	-1.273	-1.394	-0.905
Percentage of StockholdersEquity	0.4	0.2	-0.3	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.1	-0.2	-0.2	-0.3	-0.3	-0.3	-0.2	-0.2	-0.3	-0.4	-0.3	-0.3	-0.3	-0.2	-0.2	-0.2	-0.2	-0.3	-0.2	-0.3	-0.3	-0.3	-0.4	-0.2	-0.4	-0.4	-0.3	-0.3	-0.4	-0.2
Percentage of Assets	0.3	0.1	-0.2	-0.2	-0.2	-0.2	-0.2	-0.1	-0.2	-0.2	-0.1	-0.1	-0.1	-0.1	-0.2	-0.2	-0.2	-0.1	-0.1	-0.2	-0.3	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.3	-0.2	-0.3	-0.4	-0.3	-0.3	0.0	0.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AccumulatedTranslationAdjustment

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2017-11-30	2017-08-31	2017-05-31	2016-05-31	2015-05-31
Value	1.934	0.754	-1.341	-1.264	-1.272	-1.503	-1.352	-1.193	-1.366	-1.16	-1.035	-1.16	-1.035	-1.305	-0.76	-0.648
Percentage of StockholdersEquity	0.4	0.2	-0.3	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.3	-0.1	-0.1
Percentage of Assets	0.3	0.1	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.1	-0.2	-0.1	-0.2	-0.1	-0.1
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AdditionalPaidInCapital

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	566	564	561	560	557	555	555	552	549	546	543	541	538	535	532	531	535	530	525	526	524	523	520	518	513	510	508	506	503	502	500	500	498	498	496	375	373	373	371	365	358
Percentage of StockholdersEquity	124.7	124.0	123.5	91.8	90.9	90.5	90.3	99.8	100.0	100.3	100.2	100.5	103.3	103.4	103.4	99.9	102.3	103.4	103.7	95.6	95.7	95.6	95.4	95.3	94.4	94.6	94.5	94.2	95.1	95.1	95.0	94.9	94.7	95.1	94.8	91.2	90.8	91.3	91.6	93.4	96.2
Percentage of Assets	96.3	96.7	94.6	76.6	77.0	80.5	66.4	71.1	70.1	78.8	77.1	77.5	77.2	76.5	75.2	75.4	75.2	73.0	72.3	69.9	68.9	67.8	67.2	66.2	64.2	64.1	63.5	64.0	63.4	62.7	63.2	62.8	64.0	69.3	68.8	84.0	84.1	85.0	84.9	0.0	0.0
Percentage of Assets us-gaap:AdditionalPaidInCapital	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:CommonStock

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	0.375	0.375	0.374	0.374	0.373	0.373	0.372	0.372	0.372	0.372	0.37	0.37	0.369	0.368	0.367	0.37	0.369	0.366	0.363	0.363	0.362	0.362	0.36	0.36	0.358	0.356	0.353	0.353	0.353	0.352	0.351	0.35	0.349	0.349	0.348	0.252	0.251	0.252	0.25	0.247	0.245
Percentage of StockholdersEquity	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Percentage of Assets	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.1	0.1	0.1	0.0	0.0
Percentage of Assets us-gaap:CommonStock	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RetainedEarnings

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	-108.854	-104.586	-100.318	56	62	65	66	7.596	6.8	4.66	5.129	3.027	-10.992	-11.24	-11.007	1.906	-0.981	-14.715	-16.015	27	27	27	28	29	33	31	32	34	29	29	29	30	31	29	30	37	38	36	35	27	14
Percentage of StockholdersEquity	-24.0	-23.0	-22.1	9.3	10.2	10.6	10.8	1.4	1.2	0.9	0.9	0.6	-2.1	-2.2	-2.1	0.4	-0.2	-2.9	-3.2	5.0	5.0	5.0	5.2	5.3	6.1	5.9	6.1	6.4	5.5	5.5	5.6	5.8	6.0	5.6	5.8	9.0	9.5	9.0	8.7	6.9	4.0
Percentage of Assets	-18.5	-17.9	-16.9	7.8	8.6	9.4	7.9	1.0	0.9	0.7	0.7	0.4	-1.6	-1.6	-1.6	0.3	-0.1	-2.0	-2.2	3.7	3.6	3.6	3.6	3.7	4.2	4.0	4.1	4.3	3.7	3.6	3.7	3.8	4.0	4.1	4.2	8.3	8.8	8.3	8.1	0.0	0.0
Percentage of Assets us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:TreasuryStock

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2011-05-31	2010-05-31	2009-05-31
Value	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	0.0	-9.944	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	0.0	0.0	0.0
Percentage of StockholdersEquity	-1.3	-1.3	-1.3	-0.9	-0.9	-0.9	-0.9	-1.0	-1.0	-1.0	-1.1	-1.1	-1.1	-1.1	-1.1	0.0	-1.9	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	0.0	0.0	0.0
Percentage of Assets	-1.0	-1.0	-1.0	-0.8	-0.8	-0.8	-0.7	-0.7	-0.7	-0.8	-0.8	-0.8	-0.8	-0.8	-0.8	0.0	-1.4	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	0.0	0.0	0.0
Percentage of Assets us-gaap:TreasuryStock	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Assets Current

us-gaap:AssetsCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	149	142	152	129	131	166	315	142	142	120	168	156	152	150	153	145	147	152	146	149	151	160	155	157	163	154	152	140	141	145	141	146	151	160	159	211	205	199	194
Percentage of AssetsCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	25.4	24.4	25.7	17.6	18.2	24.1	37.7	18.4	18.2	17.4	23.8	22.4	21.9	21.5	21.7	20.6	20.8	21.0	20.1	19.8	19.9	20.7	20.1	20.1	20.4	19.4	19.0	17.7	17.8	18.1	17.9	18.4	19.4	22.4	22.1	47.3	46.4	45.5	44.4

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-05-22	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31	2010-05-31	2009-05-31
Value	58	47	54	27	41	83	227	41	42	24	74	52	49	48	47	35	35	37	32	21	18	20	18	19	14	13	16	7.382	15	22	21	16	19	18	23	23	34	42	50	45	35	27	67	58	27
Percentage of CashAndCashEquivalentsAtCarryingValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	9.9	8.2	9.2	3.7	5.7	12.1	27.2	5.4	5.5	3.6	10.5	7.5	7.1	6.9	6.7	5.1	5.0	5.1	4.4	2.9	2.5	2.6	2.4	2.5	1.9	1.7	2.0	0.9	1.9	2.8	2.8	2.1	2.5	2.6	3.3	0.0	7.6	9.7	11.5	10.5	0.0	0.0	0.0	0.0	0.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	33	33	31	35	33	32	43	44	43	40	39	41	42	41	44	46	50	50	52	54	53	52	58	57	58	56	62	57	48	46	47	45	47	45	48	26	31	26	27
Percentage of AccountsReceivableNetCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	5.7	5.8	5.3	4.9	4.7	4.7	5.2	5.7	5.5	5.8	5.6	6.0	6.0	5.9	6.3	6.6	7.0	6.9	7.3	7.2	7.0	6.8	7.6	7.4	7.3	7.0	7.8	7.3	6.1	5.8	6.0	5.7	6.0	6.3	6.7	6.0	7.1	6.0	6.2

Inventory Net

us-gaap:InventoryNet

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	49	52	59	54	50	45	40	52	50	49	48	56	54	55	54	57	56	58	55	65	70	74	67	68	75	70	61	59	60	59	55	61	62	63	55	28	29	29	28
Percentage of InventoryNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	8.4	9.0	10.1	7.5	6.9	6.6	4.8	6.7	6.5	7.2	6.9	8.1	7.7	7.9	7.7	8.2	8.0	8.0	7.6	8.7	9.3	9.6	8.7	8.8	9.4	8.8	7.6	7.6	7.5	7.4	7.0	7.8	8.0	8.8	7.7	6.3	6.6	6.7	6.4

Inventory Finished Goods

us-gaap:InventoryFinishedGoods

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	20	21	28	24	20	19	17	21	20	18	19	23	24	25	24	26	25	24	23	25	28	31	27	28	33	28	24	23	24	25	25	30	32	32	27
Percentage of InventoryFinishedGoods	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	3.5	3.7	4.8	3.3	2.8	2.8	2.1	2.7	2.6	2.6	2.8	3.4	3.6	3.7	3.4	3.8	3.6	3.3	3.2	3.4	3.8	4.0	3.5	3.6	4.2	3.5	3.0	2.9	3.0	3.2	3.2	3.8	4.2	4.5	3.8

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	8.493	7.957	7.31	11	6.496	4.939	4.003	4.44	4.776	4.888	4.302	4.502	4.842	4.287	5.79	3.985	3.453	4.258	3.243	4.683	5.869	6.385	4.783	4.859	6.753	6.777	5.975	6.999	9.387	8.993	8.117	13	11	11	9.826	9.353	5.788	4.315	4.675
Percentage of PrepaidExpenseAndOtherAssetsCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.4	1.4	1.2	1.6	0.9	0.7	0.5	0.6	0.6	0.7	0.6	0.6	0.7	0.6	0.8	0.6	0.5	0.6	0.4	0.6	0.8	0.8	0.6	0.6	0.8	0.9	0.7	0.9	1.2	1.1	1.0	1.7	1.5	1.6	1.4	2.1	1.3	1.0	1.1

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	4.593	4.953	4.704	5.019	4.53	3.868	2.41	5.342	5.188	4.116	4.202	4.191	4.146	4.096	4.414	4.36	4.291	4.235	4.608	4.458	4.483	4.415	4.73	5.106	4.061	4.015	3.926	4.248	4.339	4.284	4.384	4.314	4.107	3.737	2.492	2.32	2.3	2.295	2.574	2.252	2.142	2.267
Percentage of AmortizationOfIntangibleAssets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	29	29	28	28	27	25	24	41	41	42	42	43	43	44	45	46	47	47	48	49	51	52	54	58	67	66	67	66	66	63	62	61	58	57	55	23	23	23	23
Percentage of PropertyPlantAndEquipmentNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	5.0	5.0	4.8	3.9	3.8	3.7	2.9	5.3	5.4	6.1	6.0	6.2	6.3	6.3	6.4	6.6	6.6	6.5	6.6	6.6	6.7	6.8	7.1	7.4	8.5	8.4	8.4	8.4	8.3	8.0	7.9	7.7	7.5	8.0	7.7	5.2	5.2	5.3	5.4

Goodwill

us-gaap:Goodwill

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-30	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	201	200	200	359	360	347	347	423	426	382	361	361	361	361	361	361	361	361	361	361	361	361	361	360	360	360	360	359	359	359	355	356	337	307	308	161	161	161	161
Percentage of Goodwill	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	34.2	34.4	33.7	49.1	49.7	50.4	41.6	54.5	54.5	55.2	0.0	51.7	51.8	51.6	51.0	51.3	50.7	49.7	49.7	47.9	47.5	46.8	46.7	46.0	45.1	45.3	45.0	45.4	45.2	44.9	44.9	44.8	43.3	42.8	42.8	36.3	36.5	36.8	37.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	190	194	197	201	196	141	145	166	168	144	130	134	137	141	145	150	154	162	166	168	172	177	181	186	197	201	205	207	212	216	214	219	212	143	147	41	43	45	48
Percentage of IntangibleAssetsNetExcludingGoodwill	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	32.4	33.3	33.2	27.6	27.1	20.5	17.4	21.4	21.5	20.8	18.5	19.3	19.7	20.2	20.6	21.3	21.7	22.3	22.9	22.3	22.7	23.0	23.5	23.8	24.7	25.3	25.7	26.3	26.7	27.0	27.1	27.5	27.3	20.0	20.4	9.3	9.8	10.4	11.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30
Value	190	194	197	201	196	141	145	166	168	144	130	134	137	141	145	150	154
Percentage of FiniteLivedIntangibleAssetsNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	32.4	33.3	33.2	27.6	27.1	20.5	17.4	21.4	21.5	20.8	18.5	19.3	19.7	20.2	20.6	21.3	21.7

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ango:ProductTechnologies

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	158	161	163	166	160	105	107	110	111	89	78	80	82	85	87	90	92	94	97	99	102	104	107	110	112	115	117	119	120	122	125	124	118	35	36
Percentage of FiniteLivedIntangibleAssetsNet	83.4	83.1	82.7	82.5	81.8	74.1	74.0	66.5	66.1	62.3	60.1	60.0	60.4	60.2	60.0	60.0	59.9	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets	27.0	27.6	27.4	22.8	22.2	15.2	12.9	14.2	14.2	12.9	11.1	11.6	11.9	12.2	12.4	12.8	13.0	13.0	13.4	13.2	13.4	13.6	13.9	14.1	14.1	14.5	14.7	15.1	15.1	15.3	15.8	15.6	15.2	4.9	5.1
Percentage of Assets ango:ProductTechnologies	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:CustomerRelationships

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	28	29	30	31	32	33	34	36	37	34	33	34	35	36	37	38	39	40	41	40	41	42	43	44	45	47	48	50	52	54	53	56	55	57	60
Percentage of FiniteLivedIntangibleAssetsNet	14.8	15.0	15.3	15.4	16.4	23.4	23.5	21.9	22.0	24.1	25.5	25.4	25.6	25.5	25.5	25.4	25.4	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets	4.8	5.0	5.1	4.3	4.4	4.8	4.1	4.7	4.7	5.0	4.7	4.9	5.0	5.2	5.3	5.4	5.5	5.5	5.7	5.4	5.4	5.5	5.6	5.7	5.7	5.9	6.1	6.3	6.5	6.7	6.8	7.0	7.2	8.1	8.3
Percentage of Assets us-gaap:CustomerRelationships	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:LicenseAgreementTerms

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	0.273	0.393	0.513	0.634	0.754	0.672	0.716	0.885	1.055	1.225	1.395	1.566	0.471	0.568	0.666	0.748	0.866	1.028	1.215	3.6	3.6	3.6	2.003	2.204	2.414	2.548	2.428	1.528	2.591	2.569	1.801	2.004	2.209	2.257	2.441
Percentage of FiniteLivedIntangibleAssetsNet	0.1	0.2	0.3	0.3	0.4	0.5	0.5	0.5	0.6	0.8	1.1	1.2	0.3	0.4	0.5	0.5	0.6	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets	0.0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.2	0.1	0.1	0.1	0.1	0.1	0.1	0.2	0.5	0.5	0.5	0.3	0.3	0.3	0.3	0.3	0.2	0.3	0.3	0.2	0.3	0.3	0.3	0.3
Percentage of Assets us-gaap:LicenseAgreementTerms	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:Trademarks

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	3.299	3.379	3.459	3.51	2.764	2.83	2.896	17	18	17	16	17	17	18	19	20	20	21	22	1.417	1.6	1.802	2.003	3.864	4.066	4.26	4.463	4.663	4.869	5.08	5.217	5.416	4.007	4.043	4.2
Percentage of FiniteLivedIntangibleAssetsNet	1.7	1.7	1.8	1.7	1.4	2.0	2.0	10.7	10.9	12.3	12.7	12.8	13.0	13.1	13.3	13.4	13.4	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets	0.6	0.6	0.6	0.5	0.4	0.4	0.3	2.3	2.3	2.5	2.4	2.5	2.6	2.7	2.7	2.8	2.9	3.0	3.1	0.2	0.2	0.2	0.3	0.5	0.5	0.5	0.6	0.6	0.6	0.6	0.7	0.7	0.5	0.6	0.6
Percentage of Assets us-gaap:Trademarks	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31
Value	9.421	9.99	10	9.628	4.603	5.104
Percentage of OperatingLeaseRightOfUseAsset	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.6	1.7	1.7	1.3	0.6	0.7

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	17	16	15	13	8.976	9.352	3.835	3.61	3.478	3.637	3.417	3.038	2.855	2.431	1.886	1.757	1.561	3.605	4.696	5.524	4.071	4.818	5.288	4.06	2.741	3.345	4.876	5.592	5.543	5.307	5.559	5.123	9.633	10	10	3.467	3.763	3.361	2.823
Percentage of OtherAssetsNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	3.0	2.9	2.6	1.9	1.2	1.4	0.5	0.5	0.4	0.5	0.5	0.4	0.4	0.3	0.3	0.2	0.2	0.5	0.6	0.7	0.5	0.6	0.7	0.5	0.3	0.4	0.6	0.7	0.7	0.7	0.7	0.6	1.2	1.4	1.5	0.8	0.8	0.8	0.6

Accounts Payable Current

us-gaap:AccountsPayableCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	15	14	19	18	17	16	22	18	19	16	15	16	21	17	18	15	15	15	15	18	21	24	23	21	21	29	32	25	28	26	24	23	20	24	29	16	11	10	11
Percentage of AccountsPayableCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	2.7	2.4	3.2	2.5	2.5	2.4	2.7	2.4	2.5	2.4	2.2	2.3	3.1	2.5	2.6	2.2	2.1	2.2	2.1	2.4	2.9	3.2	3.1	2.8	2.7	3.7	4.1	3.2	3.6	3.3	3.1	3.0	2.7	3.4	4.0	3.7	2.7	2.4	2.6

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	27	23	29	27	28	22	38	21	21	19	34	30	30	32	38	20	20	19	21	17	16	15	18	19	19	17	16	18	17	16	16	20	22	20	18	12	14	13	13
Percentage of AccruedLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	4.7	4.0	4.9	3.7	3.9	3.3	4.6	2.8	2.7	2.9	4.9	4.4	4.4	4.6	5.5	2.9	2.9	2.6	3.0	2.4	2.2	2.0	2.4	2.5	2.4	2.2	2.1	2.4	2.2	2.1	2.1	2.6	2.9	2.8	2.6	2.8	3.3	3.0	3.2

Liabilities Current

us-gaap:LiabilitiesCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	45	39	51	48	57	47	73	53	49	45	57	54	59	64	71	50	50	65	66	61	60	60	61	59	57	63	72	63	69	74	63	66	60	52	55	29	26	24	25
Percentage of LiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	7.8	6.8	8.7	6.7	7.9	6.8	8.8	6.9	6.3	6.6	8.1	7.8	8.5	9.2	10.1	7.2	7.1	9.0	9.2	8.2	7.9	7.9	7.9	7.6	7.2	8.0	9.0	8.0	8.7	9.3	8.0	8.4	7.8	7.3	7.7	6.5	6.0	5.5	5.8

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31
Value	2145000.0	2174000.0	2077000.0	1879000.0	1393000.0	1606000.0
Percentage of OperatingLeaseLiabilityCurrent	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.4	0.4	0.3	0.3	0.2	0.2

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	5064000.0	5853000.0	5279000.0	5287000.0	5563000.0	4604000.0	8931000.0	5093000.0	6512000.0	4988000.0	5135000.0	4816000.0	4113000.0	5672000.0	4920000.0	4950000.0	4298000.0	5585000.0	5806000.0	3974000.0	3299000.0	2674000.0	2530000.0	4018000.0	5219000.0	3617000.0	3071000.0	4511000.0	3618000.0	3493000.0	3156000.0	4288000.0	4048000.0	5366000.0	3263000.0
Percentage of OtherAccruedLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.9	1.0	0.9	0.7	0.8	0.7	1.1	0.7	0.8	0.7	0.7	0.7	0.6	0.8	0.7	0.7	0.6	0.8	0.8	0.5	0.4	0.3	0.3	0.5	0.7	0.5	0.4	0.6	0.5	0.4	0.4	0.5	0.5	0.7	0.5

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28
Value	2223000.0	2251000.0	2133000.0	2074000.0	9670000.0	6731000.0	0	0	50000.0	100000.0	150000.0	200000.0	60000.0	204000.0	599000.0	883000.0	5992000.0	5334000.0	5782000.0	5969000.0
Percentage of OtherLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.4	0.4	0.4	0.3	1.3	1.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.1	0.8	0.7	0.7	0.7

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	10	10	9.029	8.015	3.492	3.8	0.521	5.296	5.221	0.595	0.621	0.789	0.809	0.829	0.85	1.0	1.083	1.1	0.908	0.917	0.775	0.784	0.0	0.0	0.124	0.032	0.084	0.188	0.185	0.673	0.475	0.236	0.68	1.479	0.327
Percentage of OtherLiabilitiesNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.7	1.7	1.5	1.1	0.5	0.6	0.1	0.7	0.7	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.1	0.0	0.1	0.2	0.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31
Value	7636000.0	8178000.0	8345000.0	7724000.0	3191000.0	3489000.0
Percentage of OperatingLeaseLiabilityNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.3	1.4	1.4	1.1	0.4	0.5

Operating Lease Liability

us-gaap:OperatingLeaseLiability

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31
Value	9.781	10	10	9.603	4.584	5.095
Percentage of OperatingLeaseLiability	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.7	1.8	1.8	1.3	0.6	0.7

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

Period End	2020-11-30	2020-08-31
Value	10	11
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue	100.0	100.0
Percentage of Assets	1.8	1.9

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

Period End	2020-11-30	2020-08-31
Value	920000.0	1022000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	100.0	100.0
Percentage of Assets	0.2	0.2

Stockholders Equity

us-gaap:StockholdersEquity

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	454	455	454	610	613	614	614	554	549	544	542	538	521	517	515	531	523	512	507	550	547	547	545	543	543	539	537	537	529	528	526	527	526	523	523	411	410	409	405	391	372
Percentage of StockholdersEquity	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	77.2	78.0	76.6	83.4	84.7	88.9	73.5	71.2	70.1	78.5	76.9	77.1	74.7	73.9	72.7	75.5	73.5	70.6	69.8	73.1	72.0	70.9	70.5	69.4	68.0	67.8	67.2	67.9	66.6	66.0	66.6	66.2	67.6	72.9	72.5	92.1	92.6	93.1	92.7	0.0	0.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	1.934	0.754	-1.341	-1.264	-1.272	-1.503	-1.352	-1.077	-1.25	-1.044	-0.952	-0.637	-0.846	-1.041	-1.324	-1.697	-1.653	-1.089	-0.791	-1.79	-1.922	-1.615	-1.568	-1.896	-1.345	-1.243	-1.269	-1.344	-1.522	-1.263	-1.534	-1.741	-1.702	-1.897	-1.274	-1.455	-1.596	-1.349	-1.273	-1.394	-0.905
Percentage of StockholdersEquity	0.4	0.2	-0.3	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.1	-0.2	-0.2	-0.3	-0.3	-0.3	-0.2	-0.2	-0.3	-0.4	-0.3	-0.3	-0.3	-0.2	-0.2	-0.2	-0.2	-0.3	-0.2	-0.3	-0.3	-0.3	-0.4	-0.2	-0.4	-0.4	-0.3	-0.3	-0.4	-0.2
Percentage of Assets	0.3	0.1	-0.2	-0.2	-0.2	-0.2	-0.2	-0.1	-0.2	-0.2	-0.1	-0.1	-0.1	-0.1	-0.2	-0.2	-0.2	-0.1	-0.1	-0.2	-0.3	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.3	-0.2	-0.3	-0.4	-0.3	-0.3	0.0	0.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AccumulatedTranslationAdjustment

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2017-11-30	2017-08-31	2017-05-31	2016-05-31	2015-05-31
Value	1.934	0.754	-1.341	-1.264	-1.272	-1.503	-1.352	-1.193	-1.366	-1.16	-1.035	-1.16	-1.035	-1.305	-0.76	-0.648
Percentage of StockholdersEquity	0.4	0.2	-0.3	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.3	-0.1	-0.1
Percentage of Assets	0.3	0.1	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.1	-0.2	-0.1	-0.2	-0.1	-0.1
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AdditionalPaidInCapital

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	566	564	561	560	557	555	555	552	549	546	543	541	538	535	532	531	535	530	525	526	524	523	520	518	513	510	508	506	503	502	500	500	498	498	496	375	373	373	371	365	358
Percentage of StockholdersEquity	124.7	124.0	123.5	91.8	90.9	90.5	90.3	99.8	100.0	100.3	100.2	100.5	103.3	103.4	103.4	99.9	102.3	103.4	103.7	95.6	95.7	95.6	95.4	95.3	94.4	94.6	94.5	94.2	95.1	95.1	95.0	94.9	94.7	95.1	94.8	91.2	90.8	91.3	91.6	93.4	96.2
Percentage of Assets	96.3	96.7	94.6	76.6	77.0	80.5	66.4	71.1	70.1	78.8	77.1	77.5	77.2	76.5	75.2	75.4	75.2	73.0	72.3	69.9	68.9	67.8	67.2	66.2	64.2	64.1	63.5	64.0	63.4	62.7	63.2	62.8	64.0	69.3	68.8	84.0	84.1	85.0	84.9	0.0	0.0
Percentage of Assets us-gaap:AdditionalPaidInCapital	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:CommonStock

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	0.375	0.375	0.374	0.374	0.373	0.373	0.372	0.372	0.372	0.372	0.37	0.37	0.369	0.368	0.367	0.37	0.369	0.366	0.363	0.363	0.362	0.362	0.36	0.36	0.358	0.356	0.353	0.353	0.353	0.352	0.351	0.35	0.349	0.349	0.348	0.252	0.251	0.252	0.25	0.247	0.245
Percentage of StockholdersEquity	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Percentage of Assets	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.1	0.1	0.1	0.0	0.0
Percentage of Assets us-gaap:CommonStock	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RetainedEarnings

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2010-05-31	2009-05-31
Value	-108.854	-104.586	-100.318	56	62	65	66	7.596	6.8	4.66	5.129	3.027	-10.992	-11.24	-11.007	1.906	-0.981	-14.715	-16.015	27	27	27	28	29	33	31	32	34	29	29	29	30	31	29	30	37	38	36	35	27	14
Percentage of StockholdersEquity	-24.0	-23.0	-22.1	9.3	10.2	10.6	10.8	1.4	1.2	0.9	0.9	0.6	-2.1	-2.2	-2.1	0.4	-0.2	-2.9	-3.2	5.0	5.0	5.0	5.2	5.3	6.1	5.9	6.1	6.4	5.5	5.5	5.6	5.8	6.0	5.6	5.8	9.0	9.5	9.0	8.7	6.9	4.0
Percentage of Assets	-18.5	-17.9	-16.9	7.8	8.6	9.4	7.9	1.0	0.9	0.7	0.7	0.4	-1.6	-1.6	-1.6	0.3	-0.1	-2.0	-2.2	3.7	3.6	3.6	3.6	3.7	4.2	4.0	4.1	4.3	3.7	3.6	3.7	3.8	4.0	4.1	4.2	8.3	8.8	8.3	8.1	0.0	0.0
Percentage of Assets us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:TreasuryStock

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2011-05-31	2010-05-31	2009-05-31
Value	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	-5.714	0.0	-9.944	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	-2.104	0.0	0.0	0.0
Percentage of StockholdersEquity	-1.3	-1.3	-1.3	-0.9	-0.9	-0.9	-0.9	-1.0	-1.0	-1.0	-1.1	-1.1	-1.1	-1.1	-1.1	0.0	-1.9	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	-0.4	0.0	0.0	0.0
Percentage of Assets	-1.0	-1.0	-1.0	-0.8	-0.8	-0.8	-0.7	-0.7	-0.7	-0.8	-0.8	-0.8	-0.8	-0.8	-0.8	0.0	-1.4	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	-0.3	0.0	0.0	0.0
Percentage of Assets us-gaap:TreasuryStock	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Common Stock Value

us-gaap:CommonStockValue

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	375000.0	375000.0	374000.0	374000.0	373000.0	373000.0	372000.0	372000.0	372000.0	372000.0	370000.0	370000.0	369000.0	368000.0	367000.0	370000.0	369000.0	366000.0	363000.0	363000.0	362000.0	362000.0	360000.0	360000.0	358000.0	356000.0	353000.0	353000.0	353000.0	352000.0	351000.0	350000.0	349000.0	349000.0	348000.0	252000.0	251000.0	252000.0	250000.0
Percentage of CommonStockValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.1	0.1	0.1

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	566	564	561	560	557	555	555	552	549	546	543	541	538	535	532	531	535	530	525	526	524	523	520	518	513	510	508	506	503	502	500	500	498	498	496	375	373	373	371
Percentage of AdditionalPaidInCapitalCommonStock	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	96.3	96.7	94.6	76.6	77.0	80.5	66.4	71.1	70.1	78.8	77.1	77.5	77.2	76.5	75.2	75.4	75.2	73.0	72.3	69.9	68.9	67.8	67.2	66.2	64.2	64.1	63.5	64.0	63.4	62.7	63.2	62.8	64.0	69.3	68.8	84.0	84.1	85.0	84.9

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	-108.854	-104.586	-100.318	56	62	65	66	7.596	6.8	4.66	5.129	3.027	-10.992	-11.24	-11.007	1.906	-0.981	-14.715	-16.015	27	27	27	28	29	33	31	32	34	29	29	29	30	31	29	30	37	38	36	35
Percentage of RetainedEarningsAccumulatedDeficit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	-18.5	-17.9	-16.9	7.8	8.6	9.4	7.9	1.0	0.9	0.7	0.7	0.4	-1.6	-1.6	-1.6	0.3	-0.1	-2.0	-2.2	3.7	3.6	3.6	3.6	3.7	4.2	4.0	4.1	4.3	3.7	3.6	3.7	3.8	4.0	4.1	4.2	8.3	8.8	8.3	8.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	1934000.0	754000.0	-1341000.0	-1264000.0	-1272000.0	-1503000.0	-1352000.0	-1077000.0	-1250000.0	-1044000.0	-952000.0	-637000.0	-846000.0	-1041000.0	-1324000.0	-1697000.0	-1653000.0	-1089000.0	-791000.0	-1790000.0	-1922000.0	-1615000.0	-1568000.0	-1896000.0	-1345000.0	-1243000.0	-1269000.0	-1344000.0	-1522000.0	-1263000.0	-1534000.0	-1741000.0	-1702000.0	-1897000.0	-1274000.0	-1455000.0	-1596000.0	-1349000.0	-1273000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.3	0.1	-0.2	-0.2	-0.2	-0.2	-0.2	-0.1	-0.2	-0.2	-0.1	-0.1	-0.1	-0.1	-0.2	-0.2	-0.2	-0.1	-0.1	-0.2	-0.3	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.3	-0.2	-0.3	-0.4	-0.3	-0.3

Treasury Stock Value

us-gaap:TreasuryStockValue

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	5714000.0	0	9944000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0	2104000.0
Percentage of TreasuryStockValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.0	1.0	1.0	0.8	0.8	0.8	0.7	0.7	0.7	0.8	0.8	0.8	0.8	0.8	0.8	0.0	1.4	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31
Value	2387000.0	1864000.0	1772000.0	2242000.0	1984000.0	2378000.0	2591000.0	2150000.0	2091000.0	2058000.0	1966000.0	1797000.0	1105000.0	1693000.0	1701000.0	1684000.0	-1260000.0	1640000.0	1234000.0	1626000.0	1609000.0	1488000.0	1506000.0	1395000.0	1389000.0	1599000.0	1271000.0	1152000.0	1237000.0	997000.0	1199000.0	1176000.0	1092000.0	1121000.0	1078000.0	799000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31
Value	2387000.0	1864000.0	1772000.0	2242000.0	1984000.0	2378000.0	2591000.0	2150000.0	2091000.0	2058000.0	1966000.0	1797000.0	1105000.0	1693000.0	1701000.0	1684000.0	-1260000.0	1640000.0	1234000.0	1626000.0	1609000.0	1488000.0	1506000.0	1395000.0	1389000.0	1599000.0	1271000.0	1152000.0	1237000.0	997000.0	1199000.0	1176000.0	1092000.0	1121000.0	1078000.0	799000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets us-gaap:AdditionalPaidInCapital	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	11	-5.425	3.88	-17.837	5.937	-6.534	25	8.342	12	-8.873	18	12	9.579	4.699	11	12	-2.294	4.942	10	-0.584	8.458	7.3	11	10.0	11	-5.614	-1.005	6.789	2.669	3.044	11	10	9.888	1.738
Percentage of NetCashProvidedByUsedInOperatingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	15.7	-7.7	6.7	-25.6	8.5	-9.9	35.1	9.7	14.2	-10.4	19.9	14.2	10.7	5.6	12.5	14.1	-2.5	5.7	10.7	-0.7	9.5	8.7	12.6	12.3	12.8	-6.7	-1.7	13.2	4.6	5.6	21.2	18.9	18.5	3.4

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-1.361	-1.824	-1.479	-11.742	-48.583	-1.541	168	0.463	-48.654	-37.682	-3.681	-2.745	-0.4	-0.743	-1.808	-4.269	-2.368	-4.848	-4.438	-6.769	-4.412	-11.387	-8.732	2.293	-150.92	-16.705	-8.451	-0.284	-1.282	-3.455	-49.758	5.875
Percentage of NetCashProvidedByUsedInInvestingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-1.9	-2.6	-2.5	-16.8	-69.4	-2.3	236.6	0.5	-53.2	-44.2	-3.9	-3.1	-0.4	-0.9	-2.0	-4.9	-2.6	-5.6	-5.0	-8.1	-4.9	-14.0	-10.0	2.7	-261.6	-32.4	-14.5	-0.5	-2.3	-6.3	-93.2	11.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-0.01	0.491	24	15	0.0	-135.749	-7.242	-10.081	53	-2.645	-4.496	-6.797	-10.299	-2.071	-11.106	-2.74	5.772	-2.391	-10.912	-0.272	-1.757	-1.255	-1.978	-1.296	141	0.992	-1.728	1.739	0.105	1.229	-0.197	0.785
Percentage of NetCashProvidedByUsedInFinancingActivities	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-0.0	0.7	42.8	22.3	0.0	-205.5	-10.2	-11.7	58.9	-3.1	-4.8	-7.8	-11.5	-2.5	-12.2	-3.2	6.3	-2.7	-12.3	-0.3	-2.0	-1.5	-2.3	-1.6	245.0	1.9	-3.0	3.2	0.2	2.2	-0.4	1.5

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

Period End	2020-11-30	2020-08-31	2019-11-30	2019-08-31
Value	10	-6.506	-42.402	-143.992
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	100.0	100.0	100.0	100.0
Percentage of Revenues	13.9	-9.3	-60.6	-218.0

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-0.933	-0.62	0.038	-0.872	-0.559	-0.175	-4.606	0.138	0.505	-0.01	1.203	-10.044	-0.024	-0.082	0.804	1.554	0.505	1.565	40	0.234	-0.412	-0.195	-0.973	-7.823	1.575	2.11	0.95	0.993	0.688	0.538	-2.244	1.244	2.26	-0.085	-0.405	-1.305	0.147	0.911	-3.277	0.152	1.41	0.875
Percentage of DeferredIncomeTaxExpenseBenefit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-0.425	2.706	-4.084	1.63	2.01	-11.474	-0.676	0.785	2.506	0.562	-2.147	-0.598	0.804	-3.103	-1.581	-3.855	-0.221	-2.822	-0.639	2.416	1.017	-5.925	1.44	-0.466	2.746	-5.815	5.163	9.59	1.961	-1.858	2.786	-2.43	1.698	-3.195	2.868	-4.887	5.237	-0.722	-1.33	2.717	2.049	-6.206
Percentage of IncreaseDecreaseInAccountsReceivable	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-3.281	-7.247	4.809	4.027	4.856	5.153	-1.274	1.747	0.194	0.761	-7.653	2.511	-1.379	0.781	-3.272	1.027	-1.491	3.049	-10.519	-4.93	-3.449	6.922	-1.322	-6.605	4.894	9.187	1.222	-0.143	0.878	3.49	-7.559	-0.484	-1.084	11	0.814	-1.269	-0.181	1.727	-1.363	-3.57	-0.52	4.035
Percentage of IncreaseDecreaseInInventories	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	11	-5.425	3.88	-17.837	5.937	-6.534	25	8.342	12	-8.873	18	12	9.579	4.699	11	12	-2.294	4.942	10	-0.584	8.458	7.3	11	10.0	11	-5.614	-1.005	6.789	2.669	3.044	11	10	9.888	1.738
Percentage of NetCashProvidedByUsedInOperatingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	15.7	-7.7	6.7	-25.6	8.5	-9.9	35.1	9.7	14.2	-10.4	19.9	14.2	10.7	5.6	12.5	14.1	-2.5	5.7	10.7	-0.7	9.5	8.7	12.6	12.3	12.8	-6.7	-1.7	13.2	4.6	5.6	21.2	18.9	18.5	3.4

Net Income Loss

us-gaap:NetIncomeLoss

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-08-30	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-4.268	-4.268	-157.067	-5.709	-2.736	-1.275	58	0.796	2.14	-0.469	2.102	14	0.249	-0.035	-12.913	2.887	13	1.3	-43.075	0.63	-0.362	-0.757	-0.814	-4.262	1.338	0.47	-1.078	4.691	-0.099	-0.426	-0.868	-0.992	1.969	-0.721	-7.028	-1.768	2.329	1.373	1.373	-0.861	3.811	3.279	1.888
Percentage of NetIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-5.9	-6.1	-269.3	-8.2	-3.9	-1.9	82.7	0.9	2.3	-0.5	2.4	16.7	0.3	-0.0	-14.9	3.4	15.4	1.5	-46.1	0.7	-0.4	-0.9	-0.9	-4.9	1.5	0.5	-1.1	5.3	-0.1	-0.5	-1.0	-1.2	2.3	-0.9	-12.2	-3.4	4.0	2.5	2.5	-1.5	7.0	6.1	3.7

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31
Value	-4.268	-4.268	-5.709	-2.736	-1.275	0.796	2.14	-0.469	2.102	14	0.249	-0.035	-12.913	2.887	13	1.3	-43.101	0.63	-0.362	-0.757	-0.814	-4.262	1.338	0.47	-1.495	5.108	-0.099	-0.426	-0.868	-0.992	1.969	-0.721	-7.028	-1.768	2.329	1.373
Percentage of NetIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.1	100.0	100.0	100.0	100.0	100.0	100.0	100.0	138.7	108.9	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-5.9	-6.1	-8.2	-3.9	-1.9	0.9	2.3	-0.5	2.4	16.7	0.3	-0.0	-14.9	3.4	15.4	1.5	-46.1	0.7	-0.4	-0.9	-0.9	-4.9	1.5	0.5	-1.6	5.8	-0.1	-0.5	-1.0	-1.2	2.3	-0.9	-12.2	-3.4	4.0	2.5
Percentage of Revenues us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Share Based Compensation

us-gaap:ShareBasedCompensation

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	2387000.0	1864000.0	1594000.0	1772000.0	2242000.0	1984000.0	2130000.0	2378000.0	2591000.0	2150000.0	2091000.0	2058000.0	1966000.0	1797000.0	1105000.0	1693000.0	1701000.0	1684000.0	-1260000.0	1640000.0	1234000.0	1626000.0	1609000.0	1488000.0	1506000.0	1395000.0	1389000.0	1599000.0	1271000.0	1152000.0	1237000.0	997000.0	1253000.0	1122000.0	1092000.0	1121000.0	1078000.0	799000.0	1207000.0	1148000.0	1035000.0	1219000.0
Percentage of ShareBasedCompensation	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-1.361	-1.824	-1.479	-11.742	-48.583	-1.541	168	0.463	-48.654	-37.682	-3.681	-2.745	-0.4	-0.743	-1.808	-4.269	-2.368	-4.848	-4.438	-6.769	-4.412	-11.387	-8.732	2.293	-150.92	-16.705	-8.451	-0.284	-1.282	-3.455	-49.758	5.875
Percentage of NetCashProvidedByUsedInInvestingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-1.9	-2.6	-2.5	-16.8	-69.4	-2.3	236.6	0.5	-53.2	-44.2	-3.9	-3.1	-0.4	-0.9	-2.0	-4.9	-2.6	-5.6	-5.0	-8.1	-4.9	-14.0	-10.0	2.7	-261.6	-32.4	-14.5	-0.5	-2.3	-6.3	-93.2	11.4

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	1.361	1.824	1.479	1.742	2.623	1.391	0.815	0.887	0.734	0.682	0.744	0.425	0.721	0.501	0.743	0.412	1.365	0.481	0.431	0.727	0.425	0.743	0.902	3.515	2.419	5.104	2.768	1.812	4.288	2.903	4.412	2.921	3.819	0.968	0.613	0.821	0.517	0.541	0.985	0.483	0.827	0.662
Percentage of PaymentsToAcquirePropertyPlantAndEquipment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-0.01	0.491	24	15	0.0	-135.749	-7.242	-10.081	53	-2.645	-4.496	-6.797	-10.299	-2.071	-11.106	-2.74	5.772	-2.391	-10.912	-0.272	-1.757	-1.255	-1.978	-1.296	141	0.992	-1.728	1.739	0.105	1.229	-0.197	0.785
Percentage of NetCashProvidedByUsedInFinancingActivities	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	-0.0	0.7	42.8	22.3	0.0	-205.5	-10.2	-11.7	58.9	-3.1	-4.8	-7.8	-11.5	-2.5	-12.2	-3.2	6.3	-2.7	-12.3	-0.3	-2.0	-1.5	-2.3	-1.6	245.0	1.9	-3.0	3.2	0.2	2.2	-0.4	1.5

ango:AcquisitionRestructuringAndOtherItemsNet

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30
Value	1.128	1.319	1.528	1.565	1.421	1.5	5.427	2.55	2.728	4.422	3.5	4.177	4.766	2.989	15	1.75	7.861	2.417	3.493	3.042	3.913	2.143	2.855	18	2.302	2.664	3.063	3.016	2.679	2.002	3.857	5.157	2.264	2.522	16	5.041	1.408
Percentage of AcquisitionRestructuringAndOtherItemsNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:AcquisitionRestructuringAndOtherItemsNet us-gaap:IncomeStatementLocation

ango:Divestiture

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31
Value	0.112	0.273	0.781	0.701	0.758	0.0	0.0	0.0
Percentage of AcquisitionRestructuringAndOtherItemsNet	9.9	20.7	49.9	49.3	50.5	0.0	0.0	0.0

ango:LegalCosts

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31
Value	1.185	0.794	0.637	0.684	0.669	1.778	0.867	2.88	2.31	2.236	1.611
Percentage of AcquisitionRestructuringAndOtherItemsNet	105.1	60.2	40.7	48.1	44.6	69.7	31.8	65.1	55.3	46.9	53.9

ango:MergersandAcquisitions

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31
Value	0.0	0.001	0.154	0.382	0.246	0.292	1.543	1.318	0.009	0.98	0.153
Percentage of AcquisitionRestructuringAndOtherItemsNet	0.0	0.1	9.8	26.9	16.4	11.5	56.6	29.8	0.2	20.6	5.1

ango:Transitionserviceagreement

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31
Value	-0.334	-0.375	-0.386	-0.597	-0.737	0.0	0.0	0.0
Percentage of AcquisitionRestructuringAndOtherItemsNet	-29.6	-28.4	-24.7	-42.0	-49.1	0.0	0.0	0.0

us-gaap:OtherExpense

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31
Value	0.165	0.626	0.379	0.251	0.538	0.47	0.19	0.094	0.31	0.13	0.009
Percentage of AcquisitionRestructuringAndOtherItemsNet	14.6	47.5	24.2	17.7	35.9	18.4	7.0	2.1	7.4	2.7	0.3

ango:ChangeInFairValueOfContingentConsideration

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-05-31	2019-02-28	2018-11-30	2018-05-31	2018-02-28	2017-11-30	2017-05-31	2017-02-28	2016-11-30	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2013-05-31	2013-02-28
Value	184000.0	-657000.0	-11647000.0	419000.0	145000.0	-7641000.0	609000.0	244000.0	32000.0	31000.0	82000.0	125000.0	122000.0	-15951000.0	330000.0	-9794000.0	542000.0	726000.0	756000.0	630000.0
Percentage of ChangeInFairValueOfContingentConsideration	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:ChangeInFairValueOfContingentConsiderationOne

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-02-29	2015-11-30	2015-08-31	2015-02-28	2014-11-30	2014-08-31	2014-02-28	2013-11-30	2013-08-31	2013-02-28	2012-11-30
Value	184000.0	-657000.0	419000.0	145000.0	-448000.0	609000.0	244000.0	12000.0	31000.0	82000.0	105000.0	122000.0	-15951000.0	443000.0	-31000.0	306000.0	355000.0	-10044000.0	617000.0	801000.0	-4154000.0	940000.0	733000.0	630000.0	197000.0
Percentage of ChangeInFairValueOfContingentConsiderationOne	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:ContractwithCustomerRightofReturnRestockingCharge

Period End	2020-11-30	2020-08-31
Value	0	20.0
Percentage of ContractwithCustomerRightofReturnRestockingCharge	0.0	100.0

ango:EffectiveIncomeTaxRateReconciliationBeforeDiscreetItemsPercent

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-02-29	2015-11-30	2015-08-31	2015-02-28	2014-08-31	2014-02-28
Value	16.1	14.2	0.129	0.132	0.083	0.253	0.263	0.023	0.049	0.598	0.529	0.429	0.473	0.552	0.464	0.504	0.43	0.518	0.422	0.429
Percentage of EffectiveIncomeTaxRateReconciliationBeforeDiscreetItemsPercent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

ango:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityCurrencyGainLossFromRemeasurement

Period End	2020-11-30	2020-08-31
Value	0	4000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityCurrencyGainLossFromRemeasurement	0.0	100.0

ango:NonCashLeaseExpense

Period End	2020-11-30	2020-08-31
Value	599000.0	666000.0
Percentage of NonCashLeaseExpense	100.0	100.0

ango:ProceedsOutlaysIssuanceOfSharesShareBasedPaymentArrangementIncludingOptionExercised

Period End	2020-11-30	2020-08-31	2019-11-30	2019-08-31
Value	-10000.0	491000.0	0	-1300000.0
Percentage of ProceedsOutlaysIssuanceOfSharesShareBasedPaymentArrangementIncludingOptionExercised	100.0	100.0	0.0	100.0

us-gaap:ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination

Period End	2020-11-30	2020-08-31
Value	200000.0	400000.0
Percentage of ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	100.0	100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

Period End	2020-11-30	2020-08-31
Value	300000.0	400000.0
Percentage of ContractWithCustomerLiabilityRevenueRecognized	100.0	100.0

us-gaap:DepreciationAndAmortization

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	6.436	6.577	6.255	6.44	5.903	5.207	6.722	6.867	6.692	5.599	5.768	5.718	5.884	5.793	6.356	6.169	6.133	6.153	6.716	6.979	7.197	7.223	7.716	8.777	7.299	6.7	6.14	6.474	6.188	6.097	6.653	6.41	6.292	5.869	3.595	3.188	3.141	3.132	3.467	3.128	2.955	3.029
Percentage of DepreciationAndAmortization	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	19000.0	252000.0	-73000.0	-68000.0	244000.0	-168000.0	-260000.0	160000.0	-146000.0	-134000.0	-362000.0	239000.0	-64000.0	659000.0	290000.0	-32000.0	-174000.0	-84000.0	69000.0	49000.0	-152000.0	-8000.0	238000.0	-395000.0	-41000.0	0	0	82000.0	0	4000.0	-22000.0	-55000.0	7000.0	5000.0	51000.0	16000.0	-28000.0	10000.0	7000.0	4000.0	-3000.0	41000.0
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-02-28	2018-11-30	2018-08-31	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-02-29	2015-11-30	2015-08-31	2015-02-28
Value	90000.0	90000.0	26000.0	270000.0	99000.0	677000.0	12000.0	0	22000.0	8000.0	0	78000.0	3699000.0	45000.0	437000.0	18000.0	220000.0	9188000.0
Percentage of ImpairmentOfLongLivedAssetsToBeDisposedOf	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	6.24	-10.087	2.536	-9.169	8.799	-17.633	15	-0.254	3.347	-13.429	2.704	-5.338	2.736	-7.195	20	-0.265	1.335	-2.475	1.777	-2.262	-1.553	-0.918	0.551	-0.29	-5.905	-0.233	4.546	-0.589	2.133	1.155	0.095	-3.273	-0.049	-6.812	3.216	2.565	2.509	-1.617	3.201	0.311	1.732	-7.676
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	2764000.0	3559000.0	-3223000.0	5834000.0	2798000.0	746000.0	363000.0	325000.0	-17000.0	1200000.0	683000.0	-155000.0	1323000.0	-620000.0	2305000.0	747000.0	-401000.0	869000.0	-953000.0	-1359000.0	-354000.0	1954000.0	-1319000.0	-1393000.0	876000.0	2836000.0	-3981000.0	586000.0	-46000.0	404000.0	-2076000.0	-99000.0	-900000.0	601000.0	-628000.0	3284000.0	1845000.0	153000.0	321000.0	-1176000.0	-816000.0	-379000.0
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2012-08-31
Value	-174000.0	197000.0	10000.0	-230000.0	-33000.0	477000.0	-72000.0	-23000.0	-57000.0	38000.0	-39000.0	-3000.0	60000.0	38000.0	-73000.0	77000.0	-30000.0	52000.0	38000.0	-191000.0	117000.0	111000.0	-71000.0	157000.0	54000.0	0	3770000.0	476000.0	-1939000.0	2663000.0	-329000.0	2769000.0
Percentage of NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent

us-gaap:AccumulatedTranslationAdjustment

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31
Value	1180000.0	2095000.0	8000.0	231000.0	80000.0	-159000.0	173000.0	-206000.0	-125000.0	-351000.0	188000.0	150000.0	283000.0
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingLeaseExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31
Value	700000.0	900000.0	3400000.0	900000.0	900000.0	700000.0
Percentage of OperatingLeaseExpense	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingLeaseExpense us-gaap:IncomeStatementLocation

us-gaap:CostOfSales

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31
Value	192000.0	201000.0	282000.0	297000.0	289000.0	300000.0
Percentage of OperatingLeaseExpense	27.4	22.3	8.3	33.0	32.1	42.9

us-gaap:GeneralAndAdministrativeExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31
Value	256000.0	295000.0	306000.0	336000.0	312000.0	400000.0
Percentage of OperatingLeaseExpense	36.6	32.8	9.0	37.3	34.7	57.1

us-gaap:ResearchAndDevelopmentExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30
Value	197000.0	288000.0	195000.0	192000.0	203000.0
Percentage of OperatingLeaseExpense	28.1	32.0	5.7	21.3	22.6

us-gaap:SellingAndMarketingExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31
Value	92000.0	100000.0	99000.0	100000.0	100000.0	98000.0
Percentage of OperatingLeaseExpense	13.1	11.1	2.9	11.1	11.1	14.0

us-gaap:OperatingLeasePayments

Period End	2020-11-30	2020-08-31	2019-11-30	2019-08-31
Value	688000.0	672000.0	0	563000.0
Percentage of OperatingLeasePayments	100.0	100.0	0.0	100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31
Value	1180000.0	2095000.0	-77000.0	8000.0	231000.0	-151000.0	-275000.0	173000.0	-206000.0	-92000.0	-315000.0	209000.0	195000.0	283000.0	373000.0	-43000.0	-565000.0	-300000.0	273000.0	164000.0	-286000.0	-21000.0	333000.0	-508000.0	-100000.0	41000.0	90000.0	220000.0	-452000.0	389000.0	336000.0	30000.0	262000.0	-1014000.0	313000.0	215000.0	-325000.0	-121000.0
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30
Value	1180000.0	2095000.0	-77000.0	8000.0	231000.0	-151000.0	-159000.0	173000.0	-206000.0	-125000.0	-351000.0	188000.0	150000.0	283000.0	361000.0	-41000.0	-571000.0	-294000.0	248000.0	79000.0	-347000.0	-90000.0	317000.0	-624000.0	-104000.0	0	49000.0	106000.0	70000.0	70000.0	-13000.0	-157000.0	82000.0	41000.0	-44000.0	15000.0	-113000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31
Value	1.18	2.095	0.008	0.231	-0.151	61	0.173	-0.206	-0.092	16	0.209	0.195	0.283	5.381	-0.043	-0.565	-0.298	-42.837	0.764	-0.67	-0.804	-0.486	-4.813	1.237	0.496	-1.14	4.693	-0.358	-0.155	-0.661	-1.031	2.164	-1.344	-6.847	-1.627	2.082	1.297
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedTranslationAdjustment

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31
Value	1.18	2.095	0.008	0.231	-0.151	-0.159	0.173	-0.206	-0.125	-0.351	0.188	0.15	0.283
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	100.0	100.0	100.0	100.0	100.0	-0.3	100.0	100.0	135.9	-2.2	90.0	76.9	100.0

us-gaap:OtherNoncashIncomeExpense

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-202000.0	432000.0	-16000.0	-97000.0	19000.0	8000.0	0	-12000.0	42000.0	-25000.0	-30000.0	78000.0	-10000.0	567000.0	51000.0	-41000.0	594000.0	-18000.0	-90000.0	-261000.0	248000.0	13000.0	-104000.0	-19000.0	279000.0	-190000.0	-33000.0	26000.0	-23000.0	47000.0	-121000.0	-690000.0	616000.0	-45000.0	-1545000.0	-58000.0	120000.0	162000.0	-84000.0	182000.0	-38000.0	-115000.0
Percentage of OtherNoncashIncomeExpense	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ProvisionForDoubtfulAccounts

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31	2011-02-28	2010-11-30	2010-08-31
Value	-431000.0	460000.0	243000.0	-13000.0	652000.0	-453000.0	-103000.0	-24000.0	153000.0	-228000.0	214000.0	-315000.0	2000.0	278000.0	292000.0	5000.0	-413000.0	-197000.0	1022000.0	1017000.0	229000.0	109000.0	789000.0	314000.0	218000.0	127000.0	184000.0	-31000.0	117000.0	195000.0	308000.0	24000.0	41000.0	-35000.0	72000.0	-159000.0	151000.0	54000.0	-10000.0	18000.0	-76000.0	-5000.0
Percentage of ProvisionForDoubtfulAccounts	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

Period End	2020-11-30	2020-08-31
Value	0	487000.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0.0	100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

Period End	2020-11-30	2018-02-28	2017-11-30	2017-08-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2012-11-30	2012-08-31
Value	-10000.0	0	0	1000.0	0	0	-457000.0	-1000.0	-19000.0	-49000.0	-262000.0	0	0	1000.0	1000.0	0	0	0	1000.0	54000.0	-53000.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation	100.0	0.0	0.0	100.0	0.0	0.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	100.0	100.0	0.0	0.0	0.0	100.0	100.0	100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:RestrictedStockUnitsRSU, us-gaap:AdditionalPaidInCapital

Period End	2020-11-30	2020-08-31	2020-02-29	2019-08-31	2019-02-28	2018-08-31
Value	-10000.0	-143000.0	-25000.0	-2459000.0	-49000.0	-460000.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation	100.0	0.0	0.0	0.0	0.0	0.0

ango:AccruedRecallLiability

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2018-05-31	2017-05-31
Value	4625000.0	5000000.0	5000000.0	4986000.0	4926000.0	4866000.0	4807000.0	0	2563000.0
Percentage of AccruedRecallLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0

ango:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour

Period End	2020-11-30	2020-08-31
Value	114	112
Percentage of FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	100.0	100.0

us-gaap:AccruedProfessionalFeesCurrentAndNoncurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2014-05-31
Value	3393000.0	2400000.0	2222000.0	2347000.0	2084000.0	1781000.0	3514000.0	3033000.0	1357000.0	4557000.0	2396000.0	1880000.0	1012000.0	1899000.0	1622000.0	1085000.0	1391000.0	1172000.0	2063000.0	1420000.0	1876000.0	934000.0	1522000.0	983000.0
Percentage of AccruedProfessionalFeesCurrentAndNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccruedRoyaltiesCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	1814000.0	1425000.0	2392000.0	2015000.0	1977000.0	1439000.0	2088000.0	1645000.0	1522000.0	1121000.0	1537000.0	1247000.0	1313000.0	2293000.0	2885000.0	2473000.0	2769000.0	2345000.0	2489000.0	2211000.0	2444000.0	2183000.0	2237000.0	2149000.0	2343000.0	2909000.0	2620000.0	2279000.0	2084000.0	1870000.0	2034000.0	1738000.0	1913000.0	2100000.0	2258000.0
Percentage of AccruedRoyaltiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31	2012-02-29	2011-11-30	2011-08-31	2011-05-31
Value	1941000.0	2373000.0	2150000.0	1991000.0	2068000.0	1434000.0	1906000.0	2128000.0	2225000.0	2222000.0	2466000.0	2438000.0	3152000.0	3152000.0	2945000.0	3089000.0	3170000.0	4094000.0	4372000.0	3673000.0	2820000.0	2339000.0	3043000.0	2339000.0	1863000.0	1863000.0	1736000.0	1553000.0	1584000.0	1467000.0	1272000.0	963000.0	939000.0	898000.0	933000.0	531000.0	690000.0	539000.0	485000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:ContingentConsiderationByType, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:BusinessCombinationContingentConsiderationLiability

ango:RevenueBasedPayment, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:ValuationTechniqueDiscountedCashFlow

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31
Value	15	14	14	23	23	8.533	10	18	17	1.173
Percentage of BusinessCombinationContingentConsiderationLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2017-05-31
Value	15	14	15	27	26	11	13	27	26	3.973	3.261	12
Percentage of BusinessCombinationContingentConsiderationLiability	100.0	100.0	105.6	114.1	114.2	138.6	134.1	148.5	148.6	338.7	0.0	0.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2020-11-30	2020-08-31	2020-05-31	2019-05-31	2018-05-31	2017-05-31
Value	15	14	15	13	3.261	12
Percentage of BusinessCombinationContingentConsiderationLiability	100.0	100.0	105.6	134.1	0.0	0.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput us-gaap:ContingentConsiderationByType, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput

ango:RevenueBasedPayment, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:MeasurementInputDiscountRate, us-gaap:ValuationTechniqueDiscountedCashFlow

Period End	2020-11-30	2020-08-31	2020-05-31	2018-08-31
Value	5.0	5.0	5.0	0.04
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput	100.0	100.0	100.0	100.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput us-gaap:Range, us-gaap:ContingentConsiderationByType, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

srt:Maximum, ango:RevenueBasedPayment, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, ango:MeasurementInputProbabilityofPayment, us-gaap:ValuationTechniqueDiscountedCashFlow

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30
Value	100.0	100.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput	2000.0	2000.0	20.0	0.0	0.0	0.0	0.0	0.0	0.0

srt:Minimum, ango:RevenueBasedPayment, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, ango:MeasurementInputProbabilityofPayment, us-gaap:ValuationTechniqueDiscountedCashFlow

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30
Value	66.0	66.0	0.66	0.66	0.66	0.66	0.66	0.66	0.66
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput	1320.0	1320.0	13.2	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-05-31	2017-05-31	2016-05-31	2015-05-31	2014-05-31	2013-05-31
Value	15	14	14	26	25	10	8.851	20	22	1.161	3.136	25	37	51	65
Percentage of BusinessCombinationContingentConsiderationLiabilityNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ContractWithCustomerLiability

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31
Value	406000.0	595000.0	545000.0	612000.0	465000.0	607000.0	681000.0	1047000.0	1201000.0	1153000.0	1203000.0
Percentage of ContractWithCustomerLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredIncomeTaxesAndOtherLiabilitiesNoncurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31
Value	23	23	24	24	24	14	14	17	17	17	17	15	26	26	26	25	23	23	21	1.119	1.119	1.119	1.119	1.146	1.146	1.146	1.146
Percentage of DeferredIncomeTaxesAndOtherLiabilitiesNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	11	6.844	13	11	11	5.97	14	10	9.624	6.381	10	7.232	8.034	6.139	11	9.807	9.918	6.618	9.414	9.129	7.984	7.465	10	10	8.797	7.595	8.224	7.529	6.217	6.815	6.491	6.858	8.585	7.514	7.761
Percentage of EmployeeRelatedLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

Period End	2020-11-30	2020-08-31
Value	16	15
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	100.0	100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-05-31
Value	15	14	15	27	26	11	13	27	26	3.973	3.261	3.229	3.198	10	12	12	12	36	38	37	37	45	47	47	57	66	67	67	72	79	75	76	62	1.85
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	140	136	130	126	121	116	112	123	117	112	108	104	100	96	92	122	117	113	112	107	103	98	94	89	86	82	78	74	70	66	61	57	53	49	45
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ango:ProductTechnologies

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	95	92	88	85	81	77	75	77	74	71	68	66	64	61	59	58	55	53	51	48	46	43	41	38	37	35	32	31	28	26	24	22	21	20	18
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	68.2	68.0	67.7	67.4	67.1	66.8	66.9	63.1	63.1	63.1	63.4	63.6	64.0	64.4	64.9	47.7	47.4	47.1	45.7	45.4	44.9	44.4	44.0	43.2	43.3	42.5	41.8	41.5	40.6	40.2	40.1	40.0	40.8	40.6	41.0

us-gaap:CustomerRelationships

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	32	31	30	29	28	26	25	26	25	24	23	22	21	20	19	50	49	48	47	45	44	43	42	41	40	39	37	36	34	32	30	28	26	24	22
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	22.8	22.9	22.9	23.0	23.1	23.1	23.0	21.4	21.4	21.5	21.4	21.4	21.2	21.1	20.9	41.0	41.7	42.4	42.0	42.7	43.5	44.5	45.4	46.6	46.9	47.5	48.0	48.7	49.0	49.2	49.4	49.5	48.9	48.7	48.1

us-gaap:LicenseAgreementTerms

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	5.814	5.694	5.574	5.453	5.333	5.215	5.036	4.867	4.697	4.527	4.357	4.186	4.016	3.919	3.821	4.289	4.171	4.009	6.716	0.0	0.0	0.0	5.91	5.709	5.288	5.342	5.211	4.762	4.949	4.819	4.501	4.298	4.093	3.895	3.711
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	4.1	4.2	4.3	4.3	4.4	4.5	4.5	3.9	4.0	4.0	4.0	4.0	4.0	4.1	4.2	3.5	3.5	3.5	6.0	0.0	0.0	0.0	6.3	6.4	6.1	6.5	6.6	6.4	7.0	7.3	7.3	7.5	7.6	7.8	8.1

us-gaap:Trademarks

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	6.851	6.771	6.691	6.64	6.536	6.47	6.404	13	13	12	11	11	10	9.782	9.069	8.357	7.634	6.976	6.242	6.514	6.313	6.111	3.229	2.481	2.279	2.085	1.882	1.682	1.476	1.265	1.058	0.859	0.568	0.532	0.375
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	4.9	5.0	5.1	5.3	5.4	5.5	5.7	11.2	11.1	11.0	10.9	10.7	10.5	10.2	9.9	6.8	6.5	6.1	5.6	6.1	6.1	6.2	3.4	2.8	2.6	2.5	2.4	2.2	2.1	1.9	1.7	1.5	1.1	1.1	0.8

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

Period End	2020-11-30	2020-08-31
Value	17	17
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

Period End	2020-11-30	2020-08-31
Value	8.488	13
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

Period End	2020-11-30	2020-08-31
Value	17	16
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

Period End	2020-11-30	2020-08-31
Value	15	15
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsGross

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-05-31	2017-05-31
Value	331	330	327	328	317	258	258	289	286	239	237
Percentage of FiniteLivedIntangibleAssetsGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ango:ProductTechnologies

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	254	253	251	251	241	182	182	188	185	160	147	147	147	147	147	148	148	148	148	148	148	148	148	148	150	150	150	150	149	149	150	147	140	55	55
Percentage of FiniteLivedIntangibleAssetsGross	76.9	76.8	76.7	76.7	76.2	70.8	70.9	65.0	64.8	0.0	61.6	0.0	0.0	0.0	61.9	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:CustomerRelationships

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	60	60	60	60	60	60	60	62	62	58	56	56	56	56	56	88	88	88	88	86	86	86	86	86	86	86	86	86	86	86	84	84	82	82	82
Percentage of FiniteLivedIntangibleAssetsGross	18.2	18.2	18.3	18.3	18.9	23.3	23.3	21.7	21.7	0.0	23.6	0.0	0.0	0.0	23.7	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:LicenseAgreementTerms

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	6.087	6.087	6.087	6.087	6.087	5.887	5.752	5.752	5.752	5.752	5.752	5.752	4.487	4.487	4.487	5.037	5.037	5.037	7.931	3.6	3.6	3.6	7.913	7.913	7.702	7.89	7.639	6.29	7.54	7.388	6.302	6.302	6.302	6.152	6.152
Percentage of FiniteLivedIntangibleAssetsGross	1.8	1.8	1.9	1.9	1.9	2.3	2.2	2.0	2.0	0.0	2.4	0.0	0.0	0.0	1.9	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:Trademarks

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	10	10	10	10	9.3	9.3	9.3	31	31	30	28	28	28	28	28	28	28	28	28	7.931	7.913	7.913	7.913	6.345	6.345	6.345	6.345	6.345	6.345	6.345	6.275	6.275	4.575	4.575	4.575
Percentage of FiniteLivedIntangibleAssetsGross	3.1	3.1	3.1	3.1	2.9	3.6	3.6	10.9	11.0	0.0	11.9	0.0	0.0	0.0	11.9	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:InventoryRawMaterials

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	21	22	23	21	19	17	16	19	20	21	18	22	18	18	17	19	19	22	21	28	30	31	28	28	30	29	24	23	24	21	18	20	20	20	18
Percentage of InventoryRawMaterials	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:InventoryValuationReserves

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2016-05-31	2015-05-31
Value	4.2	4.4	4.7	4.0	4.0	4.1	4.2	5.1	5.0	6.1	6.1	6.8	6.9	5.5	7.3	12	7.8
Percentage of InventoryValuationReserves	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:InventoryWorkInProcess

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	7.957	8.133	8.318	9.385	10	8.539	6.786	11	10	9.829	10	10	10	11	12	11	11	11	10	11	11	11	11	12	11	12	12	13	11	11	11	10	9.349	10	9.504
Percentage of InventoryWorkInProcess	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

Period End	2020-11-30	2020-08-31
Value	1254000.0	1927000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	100.0	100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30
Value	15	14	15	27	26	11	13	27	26	3.973	3.261	3.229	3.198	10	12	12	12	36	38	37	37	45	47	47	57	66	67	67	72	79	75	74	60
Percentage of LiabilitiesFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31
Value	15	14	15	27	26	11	13	27	26	3.973	3.261	3.229	3.198	10	12	12	12	36	38	37	37	45	47	47	57	66	67	68	73	80	75	75	61	1.088
Percentage of LiabilitiesFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.1	100.3	100.4	100.5	100.6	100.7	100.6	100.8	100.9	101.0	100.3	100.7	101.2	101.8	0.0

us-gaap:LineOfCredit us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCredit

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit

Period End	2020-11-30	2020-08-31	2020-02-29
Value	40	40	15
Percentage of LineOfCredit	100.0	100.0	100.0

us-gaap:LongTermLoansPayable

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-05-31
Value	40	40	40	14	0.0	0.0	124	126	139	85	86	87	88	90	91	92	110	100	105	113	122	126	128	141	87	90	91	92	93	135
Percentage of LongTermLoansPayable	100.0	100.0	100.0	100.0	0.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RestructuringReserveCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-05-31
Value	533000.0	1253000.0	794000.0	1020000.0	597000.0	616000.0	504000.0	789000.0	1092000.0	1428000.0	1940000.0	2634000.0	2844000.0	1931000.0	2075000.0	1606000.0	1126000.0	1388000.0	1524000.0	0	0	153000.0	158000.0	472000.0	1020000.0	1614000.0	765000.0	1491000.0	1200000.0	1363000.0	1602000.0	2164000.0	2901000.0	2087000.0
Percentage of RestructuringReserveCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:SalesAndExciseTaxPayableCurrent

Period End	2020-11-30	2020-08-31	2020-05-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-05-31	2015-02-28	2014-11-30	2014-08-31	2014-05-31	2014-02-28	2013-11-30	2013-08-31	2013-05-31	2013-02-28	2012-11-30	2012-08-31	2012-05-31
Value	834000.0	812000.0	634000.0	631000.0	1502000.0	3417000.0	807000.0	870000.0	1165000.0	1425000.0	683000.0	664000.0	861000.0	829000.0	856000.0	832000.0	1406000.0	2106000.0	565000.0	384000.0	600000.0	757000.0	489000.0	697000.0	1398000.0	1400000.0	1327000.0	1091000.0	1329000.0	1165000.0	1047000.0	960000.0	1287000.0	1039000.0	1092000.0
Percentage of SalesAndExciseTaxPayableCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized

Period End	2020-11-30	2014-05-31	2013-05-31
Value	14	5.8	5.8
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	100.0	100.0	100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized us-gaap:PlanName

ango:A2004StockAndIncentiveAwardPlan

Period End	2020-11-30
Value	7.8
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	54.9

ango:A2020StockAndIncentiveAwardPlan

Period End	2020-11-30
Value	2.4
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	16.9

ango:EmployeeStockPurchasePlan

Period End	2020-11-30
Value	4.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	28.2

us-gaap:TreasuryStockShares us-gaap:StatementEquityComponents

us-gaap:TreasuryStockShares

us-gaap:TreasuryStock

Period End	2020-11-30	2020-08-31	2020-02-29	2019-11-30	2019-08-31	2019-05-31	2019-02-28	2018-11-30	2018-08-31	2018-05-31	2018-02-28	2017-11-30	2017-08-31	2017-05-31	2017-02-28	2016-11-30	2016-08-31	2016-05-31	2016-02-29	2015-11-30	2015-08-31	2015-02-28	2014-11-30	2014-08-31
Value	370	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.37	0.0	0.642305	0.142305	0.142305	0.142305	0.142305	0.142305	0.142305	0.142305	0.142305
Percentage of TreasuryStockShares	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Line plots across dimensions of each concept

TTM Greenblatt ROC
_
(None,)

us-gaap:Revenues
us-gaap:ProductOrService
(None,)

us-gaap:Revenues
us-gaap:StatementGeographical
(None,)

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)

ANGO

Table of contents

Plots across concepts

Tables

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense

Revenues

us-gaap:Revenues

us-gaap:Revenues

us-gaap:Revenues us-gaap:ProductOrService

ango:Oncology