PKE

Line plots across dimensions of each concept
Tables

Tables

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:CommonStockValue	▄▄	2.096	2.096	NA	NA	2.096	NA	NA	NA	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.095	2.095	2.088	2.088	2.087	2.083	2.083	2.083	2.08	2.08	2.079	2.079	2.075	2.075	NA	2.072	NA	NA
us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock	▄▄▄▄▄▄▄▄▄	20.965144	20.965144	20.965144	20.965144	20.965144	20.965144	20.965144	20.965144	20.965144	NA	NA	NA	20.965144	NA	NA	NA	20.965144	NA	NA	NA	20.962644	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:TreasuryStock	▁▁▁▂▂▇▇██	0.446321	0.447205	0.450017	0.472991	0.479191	0.685736	0.688036	0.720586	0.723573	NA	NA	NA	0.730473	NA	NA	NA	0.730473	NA	NA	NA	0.130641	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:CommonStockSharesIssued	▄	20.965144	NA	NA	NA	20.965144	NA	NA	NA	20.965144	NA	NA	NA	20.965144	NA	NA	NA	20.965144	NA	NA	NA	20.962644	NA	NA	NA	20.882844	NA	NA	NA	20.831578	NA	NA	NA	20.795591	NA	NA	NA	20.722179	NA	NA
us-gaap:CommonStockSharesOutstanding	▄	20.518823	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	NA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding	██████▁█████████████████████████████	20.578	20.617	20.601	20.586	20.501	20.352	0.020382	20.296	20.311	20.261	20.25	20.244	20.253	20.235	20.235	20.235	20.251	20.253	20.34	20.565	20.937	20.989	21.029	20.988	20.873	20.917	20.852	20.844	20.822	20.803	20.819	20.849	20.816	20.756	20.776	20.82	NA	20.674	20.642
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic	██████▁█████████████████████████████	20.519	20.518	20.499	20.492	20.37	20.278	0.020253	20.242	20.238	20.237	20.236	20.235	20.235	20.235	20.235	20.235	20.251	20.253	20.337	20.546	20.896	20.947	20.925	20.88	20.873	20.857	20.836	20.828	20.806	20.801	20.8	20.796	20.764	20.754	20.741	20.723	NA	20.636	20.632
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOption		NA	0.076	0.077	0.191	NA	0.145	0.146	0.544	NA	0.599	0.713	0.872	NA	0.882	0.882	1.025	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:EarningsPerShareBasic	▄▄▄▄█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▄▄▄▄▄▄▄▄▄▄▄▄▄▄	0.12	0.12	0.1	0.13	5.1	0.18	0.13	0.16	0.89	0.04	0.03	0.07	0.12	0.09	0.1	0.15	0.23	0.2	0.23	0.23	0.23	0.1	0.24	0.39	-2.88	0.23	0.39	0.24	0.2	0.23	0.16	0.24	0.15	0.26	0.37	0.35	0.40000000000000013	0.24	0.46
us-gaap:EarningsPerShareDiluted	▄▄▄▄█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▄▄▄▄▄▄▄▄▄▄▄▄▄▄	0.12	0.12	0.1	0.13	5.07	0.18	0.13	0.16	0.88	0.04	0.03	0.07	0.12	0.09	0.1	0.15	0.23	0.2	0.23	0.23	0.23	0.1	0.24	0.39	-2.88	0.23	0.39	0.24	0.2	0.23	0.16	0.24	0.15	0.26	0.37	0.35	0.40000000000000013	0.24	0.46
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare	▂▂▂▂▂▂▂▁█▁▁	1.3e-07	1.4e-07	1.0000000000000001e-07	1.3e-07	8e-08	1.0000000000000001e-07	9e-08	4e-08	8.5e-07	2e-08	4e-08	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:IncomeLossFromContinuingOperationsPerDilutedShare	▂▂▂▂▂▂▂▁█▁▁	1.3e-07	1.4e-07	1.0000000000000001e-07	1.3e-07	8e-08	1.0000000000000001e-07	9e-08	4e-08	8.5e-07	2e-08	4e-08	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

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
TTM Greenblatt ROC _ _		NA	3.073	1.899	2.882	NA	2.301	1.029	3.506	1.199	0.801	-0.168	0.234	2.591	1.917	2.101	3.38	5.428	4.875	5.261	5.442	NA	2.208	5.836	10.066	NA	4.932	7.461	6.235	NA	5.616	4.083	5.909	3.187	6.005	7.634	8.419	NA	NA	NA

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax	▂▂▂▂▂▁▁▄▄▁▁▄▄▄▄▄▅▅▅▅▅▅▆▇▅▆▆▆▆▆▇▇▆▇▇█▇▇█	15.494	15.847	13.723	14.95	16.659	12.853	11.211	31.102	27.804	10.229	11.355	27.417	27.599	26.462	29.058	31.49	35.756	34.323	37.947	37.829	36.241	34.679	42.349	48.817	38.151	39.678	44.497	43.438	42.675	41.265	46.43	46.046	43.676	47.312	50.449	51.817	51.201	46.92	54.505
us-gaap:Revenues	▂▂▂▂▂▁▁▁▄▃▄▄▄▄▄▄▅▅▅▅▅▅▆▇▅▆▆▆▆▆▇▇▆▇▇█▇▇█	15.494	15.847	13.723	14.95	16.659	12.853	11.211	10.393	27.804	26.139	29.836	27.417	27.599	26.462	29.058	31.49	35.756	34.323	37.947	37.829	36.241	34.679	42.349	48.817	38.151	39.678	44.497	43.438	42.675	41.265	46.43	46.046	43.676	47.312	50.449	51.817	51.201	46.92	54.505
us-gaap:CostOfRevenue		NA	10.825	9.91	10.146	NA	8.569	8.066	22.594	62.897	7.264	8.147	21.095	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:CostOfGoodsAndServicesSold		NA	10.825	9.91	10.146	NA	8.569	8.066	22.594	7.102	7.264	8.147	21.095	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:GrossProfit	▂▂▁▂▂▂▁▃▃▂▃▂▃▃▃▄▄▄▄▅▅▄▅▇▄▅▆▆▅▅▆▆▅▆▆▇▇▆█	5.034	5.022	3.813	4.804	5.903	4.284	3.145	8.508	6.89	6.07	7.177	6.322	7.386	6.634	7.234	8.787	10.727	10.297	10.361	11.367	11.255	8.598	12.171	16.929	10.45	11.038	13.621	12.991	11.835	12.54	13.199	12.976	11.241	12.996	14.536	15.969	16.929	14.492	18.317
us-gaap:SellingGeneralAndAdministrativeExpense		NA	1.949	1.914	1.922	NA	1.983	2.116	4.819	5.404	4.797	4.443	4.727	4.688	4.604	5.11	5.337	5.137	5.264	5.009	5.801	NA	5.754	6.252	6.596	NA	6.106	6.041	6.556	NA	6.365	6.591	7.056	6.804	6.991	6.902	7.55	6.536	6.381	7.238
us-gaap:OperatingIncomeLoss		NA	3.073	1.899	2.882	NA	2.301	1.029	3.506	1.199	0.801	-0.168	0.234	2.591	1.917	2.101	3.38	5.428	4.875	5.261	5.442	NA	2.208	5.836	10.066	NA	4.932	7.461	6.235	NA	5.616	4.083	5.909	3.187	6.005	7.634	8.419	10.393	6.799	11.079
us-gaap:IncomeLossFromContinuingOperations	▂▂▂▂▂▂▂▁█▁▁▁	2.633	2.806	2.052	2.714	1.588	2.078	1.824	0.816	17.197	0.344	0.859	0.072	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:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest		NA	3.875	2.762	3.83	NA	2.694	1.386	3.846	-0.583	0.501	1.116	0.473	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:IncomeTaxExpenseBenefit		NA	1.069	0.71	1.116	NA	0.616	-0.438	0.678	-18.134	0.13	-0.54	-0.921	0.219	0.129	0.155	0.475	0.617	0.638	0.653	0.561	NA	0.038	0.747	1.644	NA	0.163	-0.692	1.203	NA	1.049	1.016	1.174	0.239	0.814	1.758	1.398	2.336	1.902	1.85
us-gaap:IncomeTaxesPaidNet		NA	0.633	NA	NA	NA	0.0	-0.11	2.442	-1.034	1.54	NA	NA	0.603	1.282	NA	NA	0.473	1.396	1.549	11.31	NA	3.32	0.459	0.0	NA	2.2	2.263	0.002	NA	2.892	2.435	0.671	-0.073	2.647	NA	NA	0.703	1.684	NA
us-gaap:NetIncomeLoss	▄▄▄▄█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▄▄▄▄▄▄▄▄▄▄▄▄▄▄	2.384	2.446	2.135	2.587	103.986	3.691	2.7	3.168	17.965	0.716	0.52	1.394	2.477	1.875	1.981	2.95	4.574	4.109	4.569	4.777	4.841	2.031	4.955	8.216	-60.024	4.721	8.045	4.929	4.072	4.71	3.246	4.933	3.151	5.379	7.67	7.242	8.285	5.02	9.447
us-gaap:ComprehensiveIncomeNetOfTax		NA	2.236	2.328	2.933	NA	3.71	2.826	3.133	18.019	-0.131	0.608	1.204	2.446	1.535	1.992	2.865	4.703	3.965	4.463	4.901	NA	2.028	4.961	8.151	NA	4.966	7.84	5.294	NA	4.882	1.662	5.23	3.001	5.22	7.624	7.691	NA	NA	NA

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:Assets	▁▁▁▂▂▁▁▁▁▅▅▅▅▅▆▆▆▆▆▆▇██████▇▇▇▇▇▇▇▇	171.786	184.558	183.529	189.675	188.851	177.939	173.096	169.456	169.023	301.347	308.144	307.706	308.578	310.044	313.246	317.003	314.777	325.924	330.146	330.807	350.682	388.812	391.65	389.486	377.093	382.143	380.504	375.671	369.658	369.418	366.769	371.867	365.988	366.735	363.379	NA	353.808	NA	NA
us-gaap:Liabilities	▁▁▁▁▁▂▂▂▂▅▆▆▆▆▆▆▆▇▇▇▇████▃▃▃▃▁▁▁▁▁▁	30.111	23.395	22.726	29.585	29.84	37.828	34.899	32.837	33.762	122.161	127.037	125.454	125.752	127.887	130.865	134.942	133.91	147.808	154.321	155.387	169.083	177.014	179.988	182.503	176.55	68.601	70.77	72.237	69.736	19.961	20.277	25.28	22.777	25.734	25.684	NA	28.5	NA	NA
us-gaap:LiabilitiesAndStockholdersEquity	▁▁▁▂▂▁▁▁▁▅▅▅▅▅▆▆▆▆▆▆▇██████▇▇▇▇▇▇▇▇	171.786	184.558	183.529	189.675	188.851	177.939	173.096	169.456	169.023	301.347	308.144	307.706	308.578	310.044	313.246	317.003	314.777	325.924	330.146	330.807	350.682	388.812	391.65	389.486	377.093	382.143	380.504	375.671	369.658	369.418	366.769	371.867	365.988	366.735	363.379	NA	353.808	NA	NA
us-gaap:StockholdersEquity	▁▂▂▂▂▁▁▁▁▂▂▃▃▃▃▃▂▂▂▂▃▄▃▃▃▇▇▆▆██████	141.675	161.163	160.803	160.09	159.011	140.111	138.197	136.619	135.261	179.186	181.107	182.252	182.826	182.157	182.381	182.061	180.867	178.116	175.825	175.42	181.599	211.798	211.662	206.983	200.543	313.542	309.734	303.434	299.922	349.457	346.492	346.587	343.211	341.001	337.695	NA	325.308	NA	NA

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:AssetsCurrent	▁▂▂▂▂▁▁▁▁▅▆▆▆▆▆▆▆▆▆▆▇███▇███▇▇▇▇▇▇▇	145.194	159.999	160.749	166.807	167.933	147.44	142.384	142.403	141.268	262.486	268.747	268.945	269.13	269.753	272.116	275.146	272.185	267.554	270.906	271.2	313.259	323.584	327.358	324.467	311.24	335.166	332.834	327.064	320.674	318.172	317.283	317.903	311.59	309.219	305.297	NA	296.959	NA	NA
us-gaap:CashAndCashEquivalentsAtCarryingValue	▁▁▂▃▃▁▂▁▁▂▂▃▅▅▅▅▅▄▄▃▆▇▅▆▆▆▅██▇▆▆▆▆▇▇▅▆▅	5.41	6.68	25.231	49.967	71.007	16.995	20.854	16.637	18.254	30.592	30.191	47.313	102.438	106.474	103.438	106.86	97.757	76.735	89.379	61.559	141.538	150.256	114.439	135.096	133.15	128.679	109.935	189.083	186.117	152.943	128.363	128.588	129.503	137.649	149.772	164.872	112.195	124.297	100.476
us-gaap:AccountsReceivableNetCurrent	▃▂▂▂▂▁▁▆▅▄▆▅▅▄▅▅▆▅▆▆▆▆▆█▆▆▇▇▇▇██▆██	10.925	10.194	8.855	8.919	9.352	5.864	5.878	21.296	19.762	16.461	21.182	17.705	17.238	16.013	18.369	18.42	22.583	20.093	21.921	21.523	21.431	20.975	22.869	28.451	22.881	22.852	25.532	26.652	25.878	25.057	27.975	27.511	23.533	27.666	28.0	NA	29.822	NA	NA
us-gaap:InventoryNet	▂▁▁▂▂▁▁▅▄▅▅▄▄▅▅▅▄▅▆▆▆▆▆▆▆▆▆▆▅▇▇█▇▇▆	6.379	3.936	4.626	5.24	5.267	4.577	3.994	12.639	11.156	11.449	11.919	10.908	11.105	12.587	11.749	12.0	10.214	12.641	14.05	14.533	14.439	14.197	15.157	15.077	13.871	14.633	14.299	14.297	12.918	15.899	15.725	18.404	15.823	16.183	14.808	NA	12.888	NA	NA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent	▅▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▁▄▅▅▅▃▄▃▃▆█▆▆▃▃▃▃▃▄	5.535	1.703	1.913	1.591	1.69	1.503	1.578	2.417	2.119	2.751	2.582	2.532	2.197	2.329	2.292	2.322	1.963	5.177	5.472	6.126	5.256	3.105	4.147	3.698	4.132	6.421	8.879	6.797	6.662	3.706	3.964	3.544	3.449	3.287	4.819	NA	3.805	NA	NA

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:NoncurrentAssets	█▅▃▃▁	26.592	24.559	22.78	22.868	20.918	NA	NA	27.053	27.755	28.861	29.397	28.761	29.448	29.166	29.802	31.857	32.592	32.097	32.87	33.661	36.377	40.228	39.292	40.019	40.853	46.977	47.67	48.607	48.984	51.246	49.486	48.984	54.398	NA	NA	NA	56.849	NA	NA
us-gaap:PropertyPlantAndEquipmentGross	▄	48.824	NA	NA	NA	70.148	NA	NA	NA	166.4	NA	NA	NA	169.518	NA	NA	NA	170.058	NA	NA	NA	172.604	NA	NA	NA	172.824	NA	NA	NA	171.467	NA	NA	NA	176.299	NA	NA	NA	NA	NA	NA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	▄	32.724	NA	NA	NA	59.357	NA	NA	NA	149.868	NA	NA	NA	150.88	NA	NA	NA	148.546	NA	NA	NA	146.067	NA	NA	NA	143.15	NA	NA	NA	139.28	NA	NA	NA	137.604	NA	NA	NA	NA	NA	NA
us-gaap:PropertyPlantAndEquipmentNet	▃▂▂▂▁▁▁▃▃▃▃▃▃▃▃▄▄▄▄▄▅▅▅▅▆▆▆▆▆▆▆▇▇██	16.1	14.011	12.311	12.284	10.791	8.888	9.111	15.83	16.532	17.117	17.616	17.947	18.638	19.333	19.969	20.743	21.512	22.257	23.03	23.821	26.537	27.362	28.129	28.796	29.674	30.154	30.821	31.756	32.187	32.995	33.445	37.956	38.695	40.43	41.105	NA	41.292	NA	NA
us-gaap:Goodwill	▄	9.776	NA	NA	NA	9.776	NA	NA	NA	9.776	NA	NA	NA	9.776	NA	NA	NA	9.776	NA	NA	NA	9.776	NA	NA	NA	9.776	NA	NA	9.854	9.776	9.776	7.576	7.661	7.661	7.576	7.576	NA	6.476	NA	NA
us-gaap:IntangibleAssetsNetExcludingGoodwill	▄	0.028	NA	NA	NA	0.035	NA	NA	NA	0.042	NA	NA	NA	0.049	NA	NA	NA	0.057	NA	NA	NA	0.064	NA	NA	NA	0.071	NA	NA	NA	0.078	NA	NA	NA	0.085	NA	NA	NA	NA	NA	NA
us-gaap:IntangibleAssetsNetIncludingGoodwill	▁▂▂▂▂▃▃▃▃▄▄▄▄▅▅▅▅▆▆▆▆▇▇▇▇██	9.804	9.811	9.811	9.811	9.811	9.818	9.818	9.818	9.818	9.825	9.825	9.825	9.825	9.833	9.833	9.833	9.833	9.84	9.84	9.84	9.84	9.847	9.847	9.847	9.847	9.854	9.854	NA	9.854	NA	NA	NA	7.661	NA	NA	NA	NA	NA	NA
us-gaap:OperatingLeaseRightOfUseAsset	▅▇▁█	0.42	0.453	0.373	0.462	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	▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▂▂▂▆▆▆▆▇▇▇▇██	0.268	0.284	0.285	0.311	0.316	0.384	0.377	1.405	1.405	1.919	1.956	0.989	0.985	1.125	1.328	1.281	1.247	1.273	1.37	0.946	1.046	3.019	1.316	1.376	1.332	6.969	6.995	6.997	6.943	8.475	8.465	8.347	8.042	9.51	9.401	NA	9.081	NA	NA

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:LiabilitiesCurrent	▂▁▁▂▂▃▃▃▃▃▄▄▃▃▄▄▄▇▇▆▇███▆▄▄▅▄▄▄▆▅▅▅	8.707	5.938	5.361	10.527	11.155	14.22	11.836	13.072	12.227	13.654	17.647	15.263	14.123	13.613	15.404	18.513	16.678	26.91	29.453	26.769	29.724	32.129	32.681	32.697	24.243	15.594	17.763	19.23	16.678	18.676	18.992	23.944	21.441	22.853	22.676	NA	25.253	NA	NA
us-gaap:AccountsPayableCurrent	▄▂▂▂▃▁▁▃▃▃▄▃▃▄▄▅▅▄▆▅▅▄▆▇▅▅▅▆▅▅▅▇▆█▆	4.735	2.01	1.819	1.971	3.169	1.709	1.091	4.486	4.025	3.424	5.444	3.619	4.183	4.692	4.936	6.838	6.155	5.598	8.315	5.904	6.882	4.622	7.924	9.3	6.109	6.224	6.395	7.419	6.485	6.331	6.543	9.255	8.427	10.652	8.602	NA	9.944	NA	NA
us-gaap:OtherAccruedLiabilitiesCurrent	▄	0.12	NA	NA	NA	0.194	NA	NA	NA	0.892	NA	NA	NA	1.161	NA	NA	NA	1.156	NA	NA	NA	1.235	NA	NA	NA	1.287	NA	NA	NA	1.516	NA	NA	NA	1.492	NA	NA	NA	NA	NA	NA
us-gaap:AccruedIncomeTaxesCurrent	▃▂▂█▇▂▂▄▄▁▃▄▄▂▃▅▄▃▄▆▆▆▅▆▄▄▆▇▆▂▄▆▆▄▆	2.111	1.737	1.481	6.026	5.066	1.539	1.467	2.821	2.821	0.591	1.891	2.894	3.023	1.276	2.164	3.464	2.943	2.316	3.289	4.22	4.141	4.321	3.36	4.599	2.995	2.691	4.79	5.426	4.177	1.448	3.29	4.701	4.198	2.771	4.618	NA	5.812	NA	NA
us-gaap:AccruedLiabilitiesCurrent	▁▂▂▂▂▁▁▄▄▅▅▄▃▄▄▄▃▄▄▄▄▄▅▅▄▅▅▅▅█▇▇▇▇▇	1.709	2.039	1.952	2.342	2.92	1.461	1.108	5.765	5.381	6.639	7.062	5.25	3.417	4.645	5.304	5.211	4.58	4.884	5.284	5.33	4.767	5.686	6.397	6.298	5.139	6.679	6.578	6.385	6.016	10.897	9.159	9.988	8.816	9.43	9.456	NA	9.497	NA	NA
us-gaap:OperatingLeaseLiabilityCurrent	▅▅▁█	0.152	0.152	0.109	0.188	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

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:DeferredIncomeTaxLiabilitiesNet	▄	0.834	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	NA
us-gaap:OtherLiabilitiesNoncurrent	█▃▂▂▂▃▁▂▂▁▁▁▂▂▂▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▃▃	4.316	1.067	1.05	1.034	1.016	1.06	0.314	0.543	0.543	0.169	0.302	0.353	1.041	0.586	1.024	1.242	1.295	1.095	1.204	1.204	1.204	0.261	0.183	0.183	0.183	0.246	0.246	0.246	0.246	0.274	0.274	0.274	0.274	1.421	1.548	NA	1.787	NA	NA
us-gaap:OperatingLeaseLiabilityNoncurrent	▂█▁▃	0.268	0.301	0.264	0.274	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

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:StockholdersEquity	▁▂▂▂▂▁▁▁▁▂▂▃▃▃▃▃▂▂▂▂▃▄▃▃▃▇▇▆▆██████	141.675	161.163	160.803	160.09	159.011	140.111	138.197	136.619	135.261	179.186	181.107	182.252	182.826	182.157	182.381	182.061	180.867	178.116	175.825	175.42	181.599	211.798	211.662	206.983	200.543	313.542	309.734	303.434	299.922	349.457	346.492	346.587	343.211	341.001	337.695	NA	325.308	NA	NA
us-gaap:CommonStockValue	▄▄	2.096	2.096	NA	NA	2.096	NA	NA	NA	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.095	2.095	2.088	2.088	2.087	2.083	2.083	2.083	2.08	2.08	2.079	2.079	2.075	2.075	NA	2.072	NA	NA
us-gaap:AdditionalPaidInCapital	████████▇▇▇▇▆▆▆▆▆▅▅▅▅▄▄▃▂▂▁	169.862	169.542	169.425	169.463	169.395	169.489	169.304	169.198	169.011	168.305	168.071	167.851	167.612	167.366	167.102	166.75	166.398	166.061	165.71	165.288	164.819	164.229	163.856	162.054	161.677	160.558	159.634	NA	158.79	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:RetainedEarningsAccumulatedDeficit	▁▂▂▂▂▁▁▁▁▃▃▃▃▃▃▃▃▃▂▂▂▃▃▃▃▇▇▆▆██████	-21.774	-1.587	-1.982	-2.067	-2.605	-17.615	-19.278	-19.954	-21.099	23.671	24.979	26.483	27.112	26.658	26.806	26.849	25.922	23.374	21.29	18.76	16.048	44.579	44.643	41.779	35.651	149.957	147.321	141.36	138.514	188.59	185.962	184.794	181.941	180.866	177.562	NA	166.795	NA	NA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax	▃▂▃▂▁▂▂▁▁▁▄▃▄▄▅▅▅▅▅▆▅▄▄▄▅▄▃▄▃▄▃█▇██	0.668	0.307	0.517	0.324	-0.022	0.241	0.222	0.096	0.131	0.077	0.924	0.836	1.026	1.057	1.397	1.386	1.471	1.342	1.486	1.592	1.468	1.161	1.162	1.156	1.221	1.034	0.79	0.991	0.629	0.964	0.79	2.374	2.077	2.227	2.386	NA	1.983	NA	NA
us-gaap:TreasuryStockValue	▅▅▅▆▆██████████████▇▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁	9.177	9.195	9.253	9.726	9.853	14.1	14.147	14.817	14.878	14.963	14.963	15.014	15.02	15.02	15.02	15.02	15.02	14.757	14.757	12.316	2.832	0.266	0.094	0.094	0.094	0.094	0.094	0.094	0.094	0.094	0.001	0.001	0.001	0.001	0.001	NA	0.001	NA	NA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital		NA	0.139	0.141	0.124	NA	0.195	0.199	0.201	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

	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:NetCashProvidedByUsedInOperatingActivities	NA	3.264	-3.623	2.648	NA	7.474	3.741	-0.259	-1.638	3.477	-1.048	2.55	2.501	NA	NA	8.415	7.162	4.805	7.799	-5.818	NA	2.811	8.811	9.339	NA	9.71	6.596	6.369	NA	6.947	3.931	2.38	8.676	7.832	4.72	10.206	8.658	14.7	NA
us-gaap:NetCashProvidedByUsedInInvestingActivities	NA	-19.8	-19.357	-21.71	NA	-8.066	1.882	0.594	110.193	0.032	-13.267	-54.909	-3.651	NA	NA	3.481	13.92	-13.354	26.925	-35.508	NA	35.533	-29.011	-5.263	NA	10.938	-83.902	-1.877	NA	19.704	-2.066	-1.255	-15.793	-17.741	-18.446	44.411	-0.003	11.047	NA
us-gaap:NetCashProvidedByUsedInFinancingActivities	NA	-2.015	-1.756	-1.978	NA	-1.991	-1.448	-1.976	-121.928	-3.024	-2.991	-2.767	-2.773	NA	NA	-2.773	1.009	-4.525	-6.98	-38.999	NA	-2.2	-0.587	-2.012	NA	-1.395	-1.835	-2.035	NA	-2.173	-1.952	-2.048	-0.978	-2.075	-1.381	-1.961	-20.926	-1.674	NA
us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease	NA	NA	NA	-21.04	NA	NA	NA	-1.617	-12.338	0.401	-17.122	-55.125	-4.036	3.036	-3.422	9.103	21.022	-12.644	27.82	-79.979	NA	35.817	-20.657	1.946	NA	18.744	-79.148	2.966	NA	24.58	-0.225	-0.915	-8.146	-12.123	-15.1	52.677	-12.102	23.821	NA

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:NetCashProvidedByUsedInOperatingActivities		NA	3.264	-3.623	2.648	NA	7.474	3.741	-0.259	-1.638	3.477	-1.048	2.55	2.501	NA	NA	8.415	7.162	4.805	7.799	-5.818	NA	2.811	8.811	9.339	NA	9.71	6.596	6.369	NA	6.947	3.931	2.38	8.676	7.832	4.72	10.206	8.658	14.7	NA
us-gaap:NetIncomeLoss	▄▄▄▄█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▄▄▄▄▄▄▄▄▄▄▄▄▄▄	2.384	2.446	2.135	2.587	103.986	3.691	2.7	3.168	17.965	0.716	0.52	1.394	2.477	1.875	1.981	2.95	4.574	4.109	4.569	4.777	4.841	2.031	4.955	8.216	-60.024	4.721	8.045	4.929	4.072	4.71	3.246	4.933	3.151	5.379	7.67	7.242	8.285	5.02	9.447
us-gaap:DepreciationDepletionAndAmortization		NA	0.409	0.367	0.366	NA	0.452	0.161	0.704	0.75	0.724	0.74	0.807	0.734	0.72	0.825	0.827	0.845	0.847	0.84	0.837	NA	0.89	0.865	0.898	NA	1.012	0.995	0.968	NA	1.034	1.07	1.1	1.598	1.437	1.427	1.429	1.56	1.723	NA
us-gaap:ShareBasedCompensation		NA	0.139	0.141	0.124	NA	0.194	0.199	0.201	0.736	0.234	0.235	0.24	0.246	0.264	0.352	0.352	0.343	0.351	0.422	0.419	NA	0.307	0.304	0.301	NA	0.24	0.276	0.271	NA	0.256	0.193	0.194	0.19	0.161	0.201	0.21	0.209	0.2	NA

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:NetCashProvidedByUsedInInvestingActivities		NA	-19.8	-19.357	-21.71	NA	-8.066	1.882	0.594	110.193	0.032	-13.267	-54.909	-3.651	NA	NA	3.481	13.92	-13.354	26.925	-35.508	NA	35.533	-29.011	-5.263	NA	10.938	-83.902	-1.877	NA	19.704	-2.066	-1.255	-15.793	-17.741	-18.446	44.411	-0.003	11.047	NA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment		NA	2.109	0.394	1.86	NA	0.229	0.157	0.013	0.183	0.203	0.395	0.105	0.048	0.1	0.053	0.041	0.078	0.094	0.05	0.176	NA	0.149	0.179	0.053	NA	0.16	0.149	0.464	NA	0.571	0.231	0.388	0.546	0.802	1.143	1.503	1.114	0.732	NA

	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
us-gaap:NetCashProvidedByUsedInFinancingActivities	NA	-2.015	-1.756	-1.978	NA	-1.991	-1.448	-1.976	-121.928	-3.024	-2.991	-2.767	-2.773	NA	NA	-2.773	1.009	-4.525	-6.98	-38.999	NA	-2.2	-0.587	-2.012	NA	-1.395	-1.835	-2.035	NA	-2.173	-1.952	-2.048	-0.978	-2.075	-1.381	-1.961	-20.926	-1.674	NA
us-gaap:PaymentsOfDividendsCommonStock	NA	NA	NA	2.049	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:PaymentsForRepurchaseOfCommonStock	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0.263	0.0	2.441	9.484	NA	0.172	0.0	0.0	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29

None

us-gaap:CommonStockValue

Period End	2020-03-01	2019-12-01	2019-03-03	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2095000.0	2095000.0	2088000.0	2088000.0	2087000.0	2083000.0	2083000.0	2083000.0	2080000.0	2080000.0	2079000.0	2079000.0	2075000.0	2075000.0	2072000.0
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
Percentage of Assets	1.2	1.1	1.1	1.2	0.7	0.7	0.7	0.7	0.7	0.7	0.7	0.7	0.6	0.6	0.6	0.6	0.5	0.5	0.5	0.6	0.5	0.5	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6

None

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01
Value	20	20	20	20	20	20	20	20	20	20	20	20	20	20
Percentage of SharesOutstanding	100.0	100.0	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:TreasuryStock

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01
Value	0.583718	0.446321	0.447205	0.450017	0.472991	0.479191	0.685736	0.688036	0.720586	0.723573	0.730473	0.730473	0.730473	0.130641
Percentage of SharesOutstanding	2.8	2.1	2.1	2.1	2.3	2.3	3.3	3.3	3.4	3.5	3.5	3.5	3.5	0.6

None

us-gaap:CommonStockSharesIssued

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27
Value	20	20	20	20	20	20	20	20	20	20
Percentage of CommonStockSharesIssued	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:CommonStockSharesOutstanding

Period End	2020-03-01	2017-10-04	2017-05-05	2016-10-03	2016-05-06	2015-01-07
Value	20	20	20	20	20	20
Percentage of CommonStockSharesOutstanding	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:CommonStockSharesOutstanding us-gaap:SubsequentEventType

us-gaap:SubsequentEvent

Period End	2020-06-03	2020-01-10	2019-10-04	2019-07-03	2019-05-10	2019-01-03	2018-06-27	2017-05-05
Value	20	20	20	20	20	20	20	20
Percentage of CommonStockSharesOutstanding	0.0	0.0	0.0	0.0	0.0	0.0	0.0	100.0

None

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-08-30	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2010-11-28	2010-08-29
Value	20	20	20	20	20	20	20	0.020382	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	21	21	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-08-30	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2010-11-28	2010-08-29
Value	20	20	20	20	20	20	20	0.020253	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EmployeeStockOption

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-28	2018-11-25	2018-08-26	2018-05-27	2017-11-26	2017-08-27	2017-05-28	2016-11-27	2016-08-28	2016-05-29
Value	0.426	0.076	0.077	0.191	0.145	0.145	0.146	0.544	0.599	0.713	0.872	0.882	0.882	1.025
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

None

us-gaap:EarningsPerShareBasic

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-08-30	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	0.1	0.12	0.12	0.1	0.13	5.1	0.18	0.13	0.16	0.89	0.04	0.03	0.07	0.12	0.09	0.1	0.15	0.23	0.2	0.23	0.23	0.23	0.1	0.24	0.24	0.39	-2.88	0.23	0.39	0.24	0.2	0.23	0.16	0.24	0.15	0.26	0.37	0.35	0.4	0.24	0.46
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:EarningsPerShareDiluted

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-08-30	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	0.1	0.12	0.12	0.1	0.13	5.07	0.18	0.13	0.16	0.88	0.04	0.03	0.07	0.12	0.09	0.1	0.15	0.23	0.2	0.23	0.23	0.23	0.1	0.24	0.24	0.39	-2.88	0.23	0.39	0.24	0.2	0.23	0.16	0.24	0.15	0.26	0.37	0.35	0.4	0.24	0.46
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27
Value	0.1	0.13	0.14	0.1	0.13	0.08	0.1	0.09	0.04	0.85	0.02	0.04
Percentage of IncomeLossFromContinuingOperationsPerBasicShare	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27
Value	0.1	0.13	0.14	0.1	0.13	0.08	0.1	0.09	0.04	0.85	0.02	0.04
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	12	15	15	13	14	16	12	11	31	27	10	11	27	27	26	29	31	35	34	37	37	36	34	42	48	38	39	44	43	42	41	46	46	43	47	50	51	51	46	54
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	299.3	100.0	39.1	38.1	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementGeographical

srt:Asia

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2017-05-28
Value	0.189	0.473	0.157	0.252	0.15	0.223	11	10
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax	1.5	3.0	1.1	1.7	1.2	2.0	36.8	36.6
Percentage of Revenues	0.0	3.0	1.1	1.7	1.2	2.0	110.0	36.6
Percentage of Revenues srt:Asia	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

srt:Europe

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2017-05-28
Value	0.278	0.905	0.679	0.508	0.48	0.754	3.027	1.968
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax	2.3	5.7	4.9	3.4	3.7	6.7	9.7	7.2
Percentage of Revenues	0.0	5.7	4.9	3.4	3.7	6.7	29.1	7.2
Percentage of Revenues srt:Europe	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

srt:NorthAmerica

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2017-05-28
Value	11	14	12	14	12	10	16	15
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax	96.2	91.3	93.9	94.9	95.1	91.3	53.5	56.2
Percentage of Revenues	0.0	91.3	93.9	94.9	95.1	91.3	160.1	56.2
Percentage of Revenues srt:NorthAmerica	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

None

us-gaap:Revenues

Period End	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	15	15	13	14	16	12	11	10	27	26	29	27	27	26	29	31	35	34	37	37	36	34	42	48	38	39	44	43	42	41	46	46	43	47	50	51	51	46	54
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
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

None

us-gaap:CostOfRevenue

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	8.539	10	9.91	10	8.569	8.066	22	62	7.264	8.147	21
Percentage of CostOfRevenue	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	68.3	72.2	67.9	66.7	71.9	217.4	226.2	27.8	27.3	76.9

None

us-gaap:CostOfGoodsAndServicesSold

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	8.539	10	9.91	10	8.569	8.066	22	7.102	7.264	8.147	21
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
Percentage of Revenues	0.0	68.3	72.2	67.9	66.7	71.9	217.4	25.5	27.8	27.3	76.9

None

us-gaap:GrossProfit

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	3.674	5.034	5.022	3.813	4.804	5.903	4.284	3.145	8.508	6.89	6.07	7.177	6.322	7.386	6.634	7.234	8.787	10	10	10	11	11	8.598	12	16	10	11	13	12	11	12	13	12	11	12	14	15	16	14	18
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
Percentage of Revenues	0.0	32.5	31.7	27.8	32.1	35.4	33.3	28.1	81.9	24.8	23.2	24.1	23.1	26.8	25.1	24.9	27.9	30.0	30.0	27.3	30.0	31.1	24.8	28.7	34.7	27.4	27.8	30.6	29.9	27.7	30.4	28.4	28.2	25.7	27.5	28.8	30.8	33.1	30.9	33.6

None

us-gaap:SellingGeneralAndAdministrativeExpense

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	1.63	1.949	1.914	1.922	1.983	2.116	4.819	5.404	4.797	4.443	4.727	4.688	4.604	5.11	5.337	5.137	5.264	5.009	5.801	5.754	6.252	6.596	6.106	6.041	6.556	6.365	6.591	7.056	6.804	6.991	6.902	7.55	6.536	6.381	7.238
Percentage of SellingGeneralAndAdministrativeExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	12.3	13.9	12.9	15.4	18.9	46.4	19.4	18.4	14.9	17.2	17.0	17.4	17.6	16.9	14.4	15.3	13.2	15.3	16.6	14.8	13.5	15.4	13.6	15.1	15.4	14.2	15.3	15.6	14.8	13.7	14.6	12.8	13.6	13.3

None

us-gaap:OperatingIncomeLoss

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	2.044	3.073	1.899	2.882	2.301	1.029	3.506	1.199	0.801	-0.168	0.234	2.591	1.917	2.101	3.38	5.428	4.875	5.261	5.442	2.208	5.836	10	4.932	7.461	6.235	5.616	4.083	5.909	3.187	6.005	7.634	8.419	10	6.799	11
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
Percentage of Revenues	0.0	19.4	13.8	19.3	17.9	9.2	33.7	4.3	3.1	-0.6	0.9	9.4	7.2	7.2	10.7	15.2	14.2	13.9	14.4	6.4	13.8	20.6	12.4	16.8	14.4	13.6	8.8	12.8	7.3	12.7	15.1	16.2	20.3	14.5	20.3

None

us-gaap:IncomeLossFromContinuingOperations

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	1.972	2.633	2.806	2.052	2.714	1.588	2.078	1.824	0.816	17	0.344	0.859	0.072
Percentage of IncomeLossFromContinuingOperations	100.0	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	17.0	17.7	15.0	18.2	9.5	16.2	16.3	7.9	61.9	1.3	2.9	0.3

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	2.7	3.875	2.762	3.83	2.694	1.386	3.846	-0.583	0.501	1.116	0.473
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	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	24.5	20.1	25.6	21.0	12.4	37.0	-2.1	1.9	3.7	1.7

None

us-gaap:IncomeTaxExpenseBenefit

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	0.728	1.069	0.71	1.116	0.616	-0.438	0.678	-18.134	0.13	-0.54	-0.921	0.219	0.129	0.155	0.475	0.617	0.638	0.653	0.561	0.038	0.747	1.644	0.163	-0.692	1.203	1.049	1.016	1.174	0.239	0.814	1.758	1.398	2.336	1.902	1.85
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
Percentage of Revenues	0.0	6.7	5.2	7.5	4.8	-3.9	6.5	-65.2	0.5	-1.8	-3.4	0.8	0.5	0.5	1.5	1.7	1.9	1.7	1.5	0.1	1.8	3.4	0.4	-1.6	2.8	2.5	2.2	2.5	0.5	1.7	3.5	2.7	4.6	4.1	3.4

None

us-gaap:IncomeTaxesPaidNet

Period End	2020-05-31	2019-12-01	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-02-26	2016-11-27	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-02-27	2010-11-28
Value	-0.323	0.633	0.0	-0.11	2.442	-1.034	1.54	0.603	1.282	0.473	1.396	1.549	11	3.32	0.459	0.0	2.2	2.263	0.002	2.892	2.435	0.671	-0.073	2.647	0.703	1.684
Percentage of IncomeTaxesPaidNet	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	0.0	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	4.0	0.0	-1.0	23.5	-3.7	5.9	2.2	4.8	1.3	4.1	4.1	29.9	9.6	1.1	0.0	5.5	5.1	0.0	7.0	5.2	1.5	-0.2	5.6	1.4	3.6

None

us-gaap:NetIncomeLoss

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-08-30	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	1.957	2.384	2.446	2.135	2.587	103	3.691	2.7	3.168	17	0.716	0.52	1.394	2.477	1.875	1.981	2.95	4.574	4.109	4.569	4.777	4.841	2.031	4.955	4.955	8.216	-60.024	4.721	8.045	4.929	4.072	4.71	3.246	4.933	3.151	5.379	7.67	7.242	8.285	5.02	9.447
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
Percentage of Revenues	0.0	15.4	15.4	15.6	17.3	624.2	28.7	24.1	30.5	64.6	2.7	1.7	5.1	9.0	7.1	6.8	9.4	12.8	12.0	12.0	12.6	13.4	5.9	11.7	0.0	16.8	-157.3	11.9	18.1	11.3	9.5	11.4	7.0	10.7	7.2	11.4	15.2	14.0	16.2	10.7	17.3

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27
Value	1.957	2.446	2.135	2.587	3.691	2.7	3.168
Percentage of NetIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	0.0	15.4	15.6	17.3	28.7	24.1	30.5
Percentage of Revenues us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0

None

us-gaap:ComprehensiveIncomeNetOfTax

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29
Value	2.161	2.236	2.328	2.933	3.71	2.826	3.133	18	-0.131	0.608	1.204	2.446	1.535	1.992	2.865	4.703	3.965	4.463	4.901	2.028	4.961	8.151	4.966	7.84	5.294	4.882	1.662	5.23	3.001	5.22	7.624	7.691
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	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	14.1	17.0	19.6	28.9	25.2	30.1	64.8	-0.5	2.0	4.4	8.9	5.8	6.9	9.1	13.2	11.6	11.8	13.0	5.8	11.7	16.7	12.5	17.6	12.2	11.8	3.6	11.4	6.9	11.0	15.1	14.8

None

us-gaap:Assets

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	168	171	184	183	189	188	177	173	169	169	301	308	307	308	310	313	317	314	325	330	330	350	388	391	389	377	382	380	375	369	369	366	371	365	366	363	353
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
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

None

us-gaap:Liabilities

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	28	30	23	22	29	29	37	34	32	33	122	127	125	125	127	130	134	133	147	154	155	169	177	179	182	176	68	70	72	69	19	20	25	22	25	25	28
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
Percentage of Assets	16.7	17.5	12.7	12.4	15.6	15.8	21.3	20.2	19.4	20.0	40.5	41.2	40.8	40.8	41.2	41.8	42.6	42.5	45.4	46.7	47.0	48.2	45.5	46.0	46.9	46.8	18.0	18.6	19.2	18.9	5.4	5.5	6.8	6.2	7.0	7.1	8.1

None

us-gaap:LiabilitiesAndStockholdersEquity

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	168	171	184	183	189	188	177	173	169	169	301	308	307	308	310	313	317	314	325	330	330	350	388	391	389	377	382	380	375	369	369	366	371	365	366	363	353
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
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

None

us-gaap:StockholdersEquity

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	140	141	161	160	160	159	140	138	136	135	179	181	182	182	182	182	182	180	178	175	175	181	211	211	206	200	313	309	303	299	349	346	346	343	341	337	325
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
Percentage of Assets	83.3	82.5	87.3	87.6	84.4	84.2	78.7	79.8	80.6	80.0	59.5	58.8	59.2	59.2	58.8	58.2	57.4	57.5	54.6	53.3	53.0	51.8	54.5	54.0	53.1	53.2	82.0	81.4	80.8	81.1	94.6	94.5	93.2	93.8	93.0	92.9	91.9

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	0.872	0.668	0.307	0.517	0.324	-0.022	0.241	0.222	0.096	0.131	1.026	1.471	1.471	1.468	1.221	0.629	2.077	1.983	1.616	1.622
Percentage of StockholdersEquity	0.6	0.5	0.2	0.3	0.2	-0.0	0.2	0.2	0.1	0.1	0.6	0.0	0.8	0.8	0.6	0.2	0.6	0.6	0.0	0.0
Percentage of Assets	0.5	0.4	0.2	0.3	0.2	-0.0	0.1	0.1	0.1	0.1	0.3	0.0	0.5	0.4	0.3	0.2	0.6	0.6	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

us-gaap:AdditionalPaidInCapital

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	169	169	169	169	169	169	169	169	169	169	167	166	166	164	161	158	157	154	149	146
Percentage of StockholdersEquity	121.2	119.9	105.2	105.4	105.9	106.5	121.0	122.5	123.8	125.0	91.7	0.0	92.0	90.8	80.6	52.9	45.8	47.5	0.0	0.0
Percentage of Assets	100.9	98.9	91.9	92.3	89.3	89.7	95.3	97.8	99.8	100.0	54.3	0.0	52.9	47.0	42.9	43.0	42.9	43.7	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

us-gaap:CommonStock

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.088	2.083	2.079	2.072	2.054	2.047
Percentage of StockholdersEquity	1.5	1.5	1.3	1.3	1.3	1.3	1.5	1.5	1.5	1.5	1.1	0.0	1.2	1.2	1.0	0.7	0.6	0.6	0.0	0.0
Percentage of Assets	1.2	1.2	1.1	1.1	1.1	1.1	1.2	1.2	1.2	1.2	0.7	0.0	0.7	0.6	0.6	0.6	0.6	0.6	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

us-gaap:RetainedEarnings

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	-21.855	-21.774	-1.587	-1.982	-2.067	-2.605	-17.615	-19.278	-19.954	-21.099	27	25	25	16	35	138	181	166	163	145
Percentage of StockholdersEquity	-15.6	-15.4	-1.0	-1.2	-1.3	-1.6	-12.6	-13.9	-14.6	-15.6	14.8	0.0	14.3	8.8	17.8	46.2	53.0	51.3	0.0	0.0
Percentage of Assets	-13.0	-12.7	-0.9	-1.1	-1.1	-1.4	-9.9	-11.1	-11.8	-12.5	8.8	0.0	8.2	4.6	9.5	37.5	49.7	47.1	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

us-gaap:TreasuryStock

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	-10.821	-9.177	-9.195	-9.253	-9.726	-9.853	-14.1	-14.147	-14.817	-14.878	-15.02	-15.02	-15.02	-2.832	-0.094	-0.094	-0.001	-0.001	-0.001	-0.001
Percentage of StockholdersEquity	-7.7	-6.5	-5.7	-5.8	-6.1	-6.2	-10.1	-10.2	-10.8	-11.0	-8.2	0.0	-8.3	-1.6	-0.0	-0.0	-0.0	-0.0	0.0	0.0
Percentage of Assets	-6.4	-5.3	-5.0	-5.0	-5.1	-5.2	-7.9	-8.2	-8.7	-8.8	-4.9	0.0	-4.8	-0.8	-0.0	-0.0	-0.0	-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

None

us-gaap:AssetsCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	139	145	159	160	166	167	147	142	142	141	262	268	268	269	269	272	275	272	267	270	271	313	323	327	324	311	335	332	327	320	318	317	317	311	309	305	296
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
Percentage of Assets	82.9	84.5	86.7	87.6	87.9	88.9	82.9	82.3	84.0	83.6	87.1	87.2	87.4	87.2	87.0	86.9	86.8	86.5	82.1	82.1	82.0	89.3	83.2	83.6	83.3	82.5	87.7	87.5	87.1	86.7	86.1	86.5	85.5	85.1	84.3	84.0	83.9

None

us-gaap:CashAndCashEquivalentsAtCarryingValue

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29	2010-02-28	2009-03-01
Value	8.405	5.41	6.68	25	49	71	16	20	16	18	30	30	47	102	106	103	106	97	76	89	61	141	150	114	135	133	128	109	189	186	152	128	128	129	137	149	164	112	124	100	134	40
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
Percentage of Assets	5.0	3.1	3.6	13.7	26.3	37.6	9.6	12.0	9.8	10.8	10.2	9.8	15.4	33.2	34.3	33.0	33.7	31.1	23.5	27.1	18.6	40.4	38.6	29.2	34.7	35.3	33.7	28.9	50.3	50.3	41.4	35.0	34.6	35.4	37.5	41.2	0.0	31.7	0.0	0.0	0.0	0.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:CashAndCashEquivalents

pke:CashAndCashEquivalentsForeignFinancialInstitutions

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01
Value	0.021	65	7.513	22	28	28
Percentage of CashAndCashEquivalentsAtCarryingValue	0.4	91.7	41.2	21.7	29.5	20.5
Percentage of Assets	0.0	34.5	4.4	7.2	9.2	8.3
Percentage of Assets pke:CashAndCashEquivalentsForeignFinancialInstitutions	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:InvestmentType

us-gaap:DebtSecurities

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03
Value	2.496	49	4.983	29	39	0.0	19	0.0
Percentage of CashAndCashEquivalentsAtCarryingValue	46.1	70.0	27.3	29.2	40.9	0.0	15.0	0.0
Percentage of Assets	1.5	26.3	2.9	9.7	12.7	0.0	5.3	0.0
Percentage of Assets us-gaap:DebtSecurities	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

None

us-gaap:AccountsReceivableNetCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	6.59	10	10	8.855	8.919	9.352	5.864	5.878	21	19	16	21	17	17	16	18	18	22	20	21	21	21	20	22	28	22	22	25	26	25	25	27	27	23	27	28	29
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
Percentage of Assets	3.9	6.4	5.5	4.8	4.7	5.0	3.3	3.4	12.6	11.7	5.5	6.9	5.8	5.6	5.2	5.9	5.8	7.2	6.2	6.6	6.5	6.1	5.4	5.8	7.3	6.1	6.0	6.7	7.1	7.0	6.8	7.6	7.4	6.4	7.5	7.7	8.4

None

us-gaap:InventoryNet

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	6.68	6.379	3.936	4.626	5.24	5.267	4.577	3.994	12	11	11	11	10	11	12	11	12	10	12	14	14	14	14	15	15	13	14	14	14	12	15	15	18	15	16	14	12
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
Percentage of Assets	4.0	3.7	2.1	2.5	2.8	2.8	2.6	2.3	7.5	6.6	3.8	3.9	3.5	3.6	4.1	3.8	3.8	3.2	3.9	4.3	4.4	4.1	3.7	3.9	3.9	3.7	3.8	3.8	3.8	3.5	4.3	4.3	4.9	4.3	4.4	4.1	3.6

None

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	5243000.0	5535000.0	1703000.0	1913000.0	1591000.0	1690000.0	1503000.0	1578000.0	2417000.0	2119000.0	2751000.0	2582000.0	2532000.0	2197000.0	2329000.0	2292000.0	2322000.0	1963000.0	5177000.0	5472000.0	6126000.0	5256000.0	3105000.0	4147000.0	3698000.0	4132000.0	6421000.0	8879000.0	6797000.0	6662000.0	3706000.0	3964000.0	3544000.0	3449000.0	3287000.0	4819000.0	3805000.0
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
Percentage of Assets	3.1	3.2	0.9	1.0	0.8	0.9	0.8	0.9	1.4	1.3	0.9	0.8	0.8	0.7	0.8	0.7	0.7	0.6	1.6	1.7	1.9	1.5	0.8	1.1	0.9	1.1	1.7	2.3	1.8	1.8	1.0	1.1	1.0	0.9	0.9	1.3	1.1

None

us-gaap:NoncurrentAssets

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-05-27	2018-03-03	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-02-27
Value	28	26	24	22	22	20	27	20	27	28	29	28	29	29	29	31	32	32	32	33	36	40	39	40	40	46	47	48	48	51	49	48	54	56
Percentage of NoncurrentAssets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	17.1	15.5	13.3	12.4	12.1	11.1	16.0	0.0	16.4	9.6	9.5	9.3	9.5	9.4	9.5	10.0	10.4	9.8	10.0	10.2	10.4	10.3	10.0	10.3	10.8	12.3	12.5	12.9	13.3	13.9	13.5	13.2	14.9	16.1

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

srt:Asia

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-05-27	2018-03-03	2018-02-25	2017-02-26	2016-02-28
Value	1.61	1.65	1.692	1.733	1.775	1.546	7.23	1.546	7.483	8.44	9.478
Percentage of NoncurrentAssets	5.6	6.2	6.9	7.6	7.8	7.4	26.7	7.4	27.0	28.7	29.1
Percentage of Assets	1.0	1.0	0.9	0.9	0.9	0.8	4.3	0.0	4.4	2.7	3.0
Percentage of Assets srt:Asia	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

srt:NorthAmerica

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-05-27	2018-03-03	2018-02-25	2017-02-26	2016-02-28
Value	27	24	22	21	21	19	19	19	20	20	22
Percentage of NoncurrentAssets	94.4	93.8	93.1	92.4	92.2	92.6	72.5	92.6	72.2	70.6	70.1
Percentage of Assets	16.2	14.5	12.4	11.5	11.1	10.3	11.6	0.0	11.9	6.7	7.3
Percentage of Assets srt:NorthAmerica	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

None

us-gaap:PropertyPlantAndEquipmentGross

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	48	70	166	169	170	172	172	171	176
Percentage of PropertyPlantAndEquipmentGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	28.4	37.1	98.4	54.9	54.0	49.2	45.8	46.4	48.2

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

pke:MachineryEquipmentFurnitureAndFixtures

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	35	56	127	129	130	130	133	131	135
Percentage of PropertyPlantAndEquipmentGross	72.1	81.2	76.3	76.5	76.5	75.7	77.0	77.0	76.6
Percentage of Assets	20.5	30.2	75.2	42.0	41.3	37.2	35.3	35.7	36.9
Percentage of Assets pke:MachineryEquipmentFurnitureAndFixtures	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:LandBuildingsAndImprovements

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	13	13	39	39	39	42	39	39	41
Percentage of PropertyPlantAndEquipmentGross	27.9	18.8	23.7	23.5	23.5	24.3	23.0	23.0	23.4
Percentage of Assets	7.9	7.0	23.3	12.9	12.7	12.0	10.5	10.7	11.2
Percentage of Assets us-gaap:LandBuildingsAndImprovements	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

None

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	32	59	149	150	148	146	143	139	137
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	19.0	31.4	88.7	48.9	47.2	41.7	38.0	37.7	37.6

None

us-gaap:PropertyPlantAndEquipmentNet

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	18	16	14	12	12	10	8.888	9.111	15	16	17	17	17	18	19	19	20	21	22	23	23	26	27	28	28	29	30	30	31	32	32	33	37	38	40	41	41
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
Percentage of Assets	10.9	9.4	7.6	6.7	6.5	5.7	5.0	5.3	9.3	9.8	5.7	5.7	5.8	6.0	6.2	6.4	6.5	6.8	6.8	7.0	7.2	7.6	7.0	7.2	7.4	7.9	7.9	8.1	8.5	8.7	8.9	9.1	10.2	10.6	11.0	11.3	11.7

None

us-gaap:Goodwill

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	9776000.0	9776000.0	9776000.0	9776000.0	9776000.0	9776000.0	9776000.0	9854000.0	9776000.0	9776000.0	7576000.0	7661000.0	7661000.0	7576000.0	7576000.0	6476000.0
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
Percentage of Assets	5.7	5.2	5.8	3.2	3.1	2.8	2.6	2.6	2.6	2.6	2.1	2.1	2.1	2.1	2.1	1.8

None

us-gaap:IntangibleAssetsNetExcludingGoodwill

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	28000.0	35000.0	42000.0	49000.0	57000.0	64000.0	71000.0	78000.0	85000.0
Percentage of IntangibleAssetsNetExcludingGoodwill	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

None

us-gaap:IntangibleAssetsNetIncludingGoodwill

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-03-03	2012-02-26
Value	9804000.0	9804000.0	9811000.0	9811000.0	9811000.0	9811000.0	9818000.0	9818000.0	9818000.0	9818000.0	9825000.0	9825000.0	9825000.0	9825000.0	9833000.0	9833000.0	9833000.0	9833000.0	9840000.0	9840000.0	9840000.0	9840000.0	9847000.0	9847000.0	9847000.0	9847000.0	9854000.0	9854000.0	9854000.0	7661000.0
Percentage of IntangibleAssetsNetIncludingGoodwill	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	5.8	5.7	5.3	5.3	5.2	5.2	5.5	5.7	5.8	5.8	3.3	3.2	3.2	3.2	3.2	3.1	3.1	3.1	3.0	3.0	3.0	2.8	2.5	2.5	2.5	2.6	2.6	2.6	2.7	2.1

None

us-gaap:OperatingLeaseRightOfUseAsset

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02
Value	387000.0	420000.0	453000.0	373000.0	462000.0
Percentage of OperatingLeaseRightOfUseAsset	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.2	0.2	0.2	0.2	0.2

None

us-gaap:OtherAssetsNoncurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	264000.0	268000.0	284000.0	285000.0	311000.0	316000.0	384000.0	377000.0	1405000.0	1405000.0	1919000.0	1956000.0	989000.0	985000.0	1125000.0	1328000.0	1281000.0	1247000.0	1273000.0	1370000.0	946000.0	1046000.0	3019000.0	1316000.0	1376000.0	1332000.0	6969000.0	6995000.0	6997000.0	6943000.0	8475000.0	8465000.0	8347000.0	8042000.0	9510000.0	9401000.0	9081000.0
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
Percentage of Assets	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.8	0.8	0.6	0.6	0.3	0.3	0.4	0.4	0.4	0.4	0.4	0.4	0.3	0.3	0.8	0.3	0.4	0.4	1.8	1.8	1.9	1.9	2.3	2.3	2.2	2.2	2.6	2.6	2.6

None

us-gaap:LiabilitiesCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	6.814	8.707	5.938	5.361	10	11	14	11	13	12	13	17	15	14	13	15	18	16	26	29	26	29	32	32	32	24	15	17	19	16	18	18	23	21	22	22	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
Percentage of Assets	4.0	5.1	3.2	2.9	5.6	5.9	8.0	6.8	7.7	7.2	4.5	5.7	5.0	4.6	4.4	4.9	5.8	5.3	8.3	8.9	8.1	8.5	8.3	8.3	8.4	6.4	4.1	4.7	5.1	4.5	5.1	5.2	6.4	5.9	6.2	6.2	7.1

None

us-gaap:AccountsPayableCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	2.487	4.735	2.01	1.819	1.971	3.169	1.709	1.091	4.486	4.025	3.424	5.444	3.619	4.183	4.692	4.936	6.838	6.155	5.598	8.315	5.904	6.882	4.622	7.924	9.3	6.109	6.224	6.395	7.419	6.485	6.331	6.543	9.255	8.427	10	8.602	9.944
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
Percentage of Assets	1.5	2.8	1.1	1.0	1.0	1.7	1.0	0.6	2.6	2.4	1.1	1.8	1.2	1.4	1.5	1.6	2.2	2.0	1.7	2.5	1.8	2.0	1.2	2.0	2.4	1.6	1.6	1.7	2.0	1.8	1.7	1.8	2.5	2.3	2.9	2.4	2.8

None

us-gaap:OtherAccruedLiabilitiesCurrent

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	120000.0	194000.0	892000.0	1161000.0	1156000.0	1235000.0	1287000.0	1516000.0	1492000.0
Percentage of OtherAccruedLiabilitiesCurrent	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	0.5	0.4	0.4	0.4	0.3	0.4	0.4

None

us-gaap:AccruedIncomeTaxesCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	2824000.0	2111000.0	1737000.0	1481000.0	6026000.0	5066000.0	1539000.0	1467000.0	2821000.0	2821000.0	591000.0	1891000.0	2894000.0	3023000.0	1276000.0	2164000.0	3464000.0	2943000.0	2316000.0	3289000.0	4220000.0	4141000.0	4321000.0	3360000.0	4599000.0	2995000.0	2691000.0	4790000.0	5426000.0	4177000.0	1448000.0	3290000.0	4701000.0	4198000.0	2771000.0	4618000.0	5812000.0
Percentage of AccruedIncomeTaxesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	1.7	1.2	0.9	0.8	3.2	2.7	0.9	0.8	1.7	1.7	0.2	0.6	0.9	1.0	0.4	0.7	1.1	0.9	0.7	1.0	1.3	1.2	1.1	0.9	1.2	0.8	0.7	1.3	1.4	1.1	0.4	0.9	1.3	1.1	0.8	1.3	1.6

None

us-gaap:AccruedLiabilitiesCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	1.361	1.709	2.039	1.952	2.342	2.92	1.461	1.108	5.765	5.381	6.639	7.062	5.25	3.417	4.645	5.304	5.211	4.58	4.884	5.284	5.33	4.767	5.686	6.397	6.298	5.139	6.679	6.578	6.385	6.016	10	9.159	9.988	8.816	9.43	9.456	9.497
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
Percentage of Assets	0.8	1.0	1.1	1.1	1.2	1.5	0.8	0.6	3.4	3.2	2.2	2.3	1.7	1.1	1.5	1.7	1.6	1.5	1.5	1.6	1.6	1.4	1.5	1.6	1.6	1.4	1.7	1.7	1.7	1.6	2.9	2.5	2.7	2.4	2.6	2.6	2.7

None

us-gaap:OperatingLeaseLiabilityCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02
Value	142000.0	152000.0	152000.0	109000.0	188000.0
Percentage of OperatingLeaseLiabilityCurrent	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.1	0.1	0.1	0.1	0.1

None

us-gaap:DeferredIncomeTaxLiabilitiesNet

Period End	2020-05-31	2020-03-01
Value	793000.0	834000.0
Percentage of DeferredIncomeTaxLiabilitiesNet	100.0	100.0
Percentage of Assets	0.5	0.5

None

us-gaap:OtherLiabilitiesNoncurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	4367000.0	4316000.0	1067000.0	1050000.0	1034000.0	1016000.0	1060000.0	314000.0	543000.0	543000.0	169000.0	302000.0	353000.0	1041000.0	586000.0	1024000.0	1242000.0	1295000.0	1095000.0	1204000.0	1204000.0	1204000.0	261000.0	183000.0	183000.0	183000.0	246000.0	246000.0	246000.0	246000.0	274000.0	274000.0	274000.0	274000.0	1421000.0	1548000.0	1787000.0
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	100.0	100.0	100.0	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	2.6	2.5	0.6	0.6	0.5	0.5	0.6	0.2	0.3	0.3	0.1	0.1	0.1	0.3	0.2	0.3	0.4	0.4	0.3	0.4	0.4	0.3	0.1	0.0	0.0	0.0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.4	0.4	0.5

None

us-gaap:OperatingLeaseLiabilityNoncurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02
Value	245000.0	268000.0	301000.0	264000.0	274000.0
Percentage of OperatingLeaseLiabilityNoncurrent	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.1	0.2	0.2	0.1	0.1

None

us-gaap:StockholdersEquity

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	140	141	161	160	160	159	140	138	136	135	179	181	182	182	182	182	182	180	178	175	175	181	211	211	206	200	313	309	303	299	349	346	346	343	341	337	325
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
Percentage of Assets	83.3	82.5	87.3	87.6	84.4	84.2	78.7	79.8	80.6	80.0	59.5	58.8	59.2	59.2	58.8	58.2	57.4	57.5	54.6	53.3	53.0	51.8	54.5	54.0	53.1	53.2	82.0	81.4	80.8	81.1	94.6	94.5	93.2	93.8	93.0	92.9	91.9

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	0.872	0.668	0.307	0.517	0.324	-0.022	0.241	0.222	0.096	0.131	1.026	1.471	1.471	1.468	1.221	0.629	2.077	1.983	1.616	1.622
Percentage of StockholdersEquity	0.6	0.5	0.2	0.3	0.2	-0.0	0.2	0.2	0.1	0.1	0.6	0.0	0.8	0.8	0.6	0.2	0.6	0.6	0.0	0.0
Percentage of Assets	0.5	0.4	0.2	0.3	0.2	-0.0	0.1	0.1	0.1	0.1	0.3	0.0	0.5	0.4	0.3	0.2	0.6	0.6	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

us-gaap:AdditionalPaidInCapital

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	169	169	169	169	169	169	169	169	169	169	167	166	166	164	161	158	157	154	149	146
Percentage of StockholdersEquity	121.2	119.9	105.2	105.4	105.9	106.5	121.0	122.5	123.8	125.0	91.7	0.0	92.0	90.8	80.6	52.9	45.8	47.5	0.0	0.0
Percentage of Assets	100.9	98.9	91.9	92.3	89.3	89.7	95.3	97.8	99.8	100.0	54.3	0.0	52.9	47.0	42.9	43.0	42.9	43.7	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

us-gaap:CommonStock

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.096	2.088	2.083	2.079	2.072	2.054	2.047
Percentage of StockholdersEquity	1.5	1.5	1.3	1.3	1.3	1.3	1.5	1.5	1.5	1.5	1.1	0.0	1.2	1.2	1.0	0.7	0.6	0.6	0.0	0.0
Percentage of Assets	1.2	1.2	1.1	1.1	1.1	1.1	1.2	1.2	1.2	1.2	0.7	0.0	0.7	0.6	0.6	0.6	0.6	0.6	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

us-gaap:RetainedEarnings

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	-21.855	-21.774	-1.587	-1.982	-2.067	-2.605	-17.615	-19.278	-19.954	-21.099	27	25	25	16	35	138	181	166	163	145
Percentage of StockholdersEquity	-15.6	-15.4	-1.0	-1.2	-1.3	-1.6	-12.6	-13.9	-14.6	-15.6	14.8	0.0	14.3	8.8	17.8	46.2	53.0	51.3	0.0	0.0
Percentage of Assets	-13.0	-12.7	-0.9	-1.1	-1.1	-1.4	-9.9	-11.1	-11.8	-12.5	8.8	0.0	8.2	4.6	9.5	37.5	49.7	47.1	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

us-gaap:TreasuryStock

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-02-26	2016-03-01	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28	2009-03-01
Value	-10.821	-9.177	-9.195	-9.253	-9.726	-9.853	-14.1	-14.147	-14.817	-14.878	-15.02	-15.02	-15.02	-2.832	-0.094	-0.094	-0.001	-0.001	-0.001	-0.001
Percentage of StockholdersEquity	-7.7	-6.5	-5.7	-5.8	-6.1	-6.2	-10.1	-10.2	-10.8	-11.0	-8.2	0.0	-8.3	-1.6	-0.0	-0.0	-0.0	-0.0	0.0	0.0
Percentage of Assets	-6.4	-5.3	-5.0	-5.0	-5.1	-5.2	-7.9	-8.2	-8.7	-8.8	-4.9	0.0	-4.8	-0.8	-0.0	-0.0	-0.0	-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

None

us-gaap:CommonStockValue

Period End	2020-03-01	2019-12-01	2019-03-03	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2095000.0	2095000.0	2088000.0	2088000.0	2087000.0	2083000.0	2083000.0	2083000.0	2080000.0	2080000.0	2079000.0	2079000.0	2075000.0	2075000.0	2072000.0
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
Percentage of Assets	1.2	1.1	1.1	1.2	0.7	0.7	0.7	0.7	0.7	0.7	0.7	0.7	0.6	0.6	0.6	0.6	0.5	0.5	0.5	0.6	0.5	0.5	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6

None

us-gaap:AdditionalPaidInCapital

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-03-03
Value	169	169	169	169	169	169	169	169	169	169	168	168	167	167	167	167	166	166	166	165	165	164	164	163	162	161	160	159	158
Percentage of AdditionalPaidInCapital	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	100.9	98.9	91.9	92.3	89.3	89.7	95.3	97.8	99.8	100.0	55.9	54.5	54.5	54.3	54.0	53.3	52.6	52.9	51.0	50.2	50.0	47.0	42.2	41.8	41.6	42.9	42.0	42.0	43.0

None

us-gaap:RetainedEarningsAccumulatedDeficit

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	-21.855	-21.774	-1.587	-1.982	-2.067	-2.605	-17.615	-19.278	-19.954	-21.099	23	24	26	27	26	26	26	25	23	21	18	16	44	44	41	35	149	147	141	138	188	185	184	181	180	177	166
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
Percentage of Assets	-13.0	-12.7	-0.9	-1.1	-1.1	-1.4	-9.9	-11.1	-11.8	-12.5	7.9	8.1	8.6	8.8	8.6	8.6	8.5	8.2	7.2	6.4	5.7	4.6	11.5	11.4	10.7	9.5	39.2	38.7	37.6	37.5	51.1	50.7	49.7	49.7	49.3	48.9	47.1

None

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	872000.0	668000.0	307000.0	517000.0	324000.0	-22000.0	241000.0	222000.0	96000.0	131000.0	77000.0	924000.0	836000.0	1026000.0	1057000.0	1397000.0	1386000.0	1471000.0	1342000.0	1486000.0	1592000.0	1468000.0	1161000.0	1162000.0	1156000.0	1221000.0	1034000.0	790000.0	991000.0	629000.0	964000.0	790000.0	2374000.0	2077000.0	2227000.0	2386000.0	1983000.0
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
Percentage of Assets	0.5	0.4	0.2	0.3	0.2	-0.0	0.1	0.1	0.1	0.1	0.0	0.3	0.3	0.3	0.3	0.4	0.4	0.5	0.4	0.5	0.5	0.4	0.3	0.3	0.3	0.3	0.3	0.2	0.3	0.2	0.3	0.2	0.6	0.6	0.6	0.7	0.6

None

us-gaap:TreasuryStockValue

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	10	9.177	9.195	9.253	9.726	9.853	14	14	14	14	14	14	15	15	15	15	15	15	14	14	12	2.832	0.266	0.094	0.094	0.094	0.094	0.094	0.094	0.094	0.094	0.001	0.001	0.001	0.001	0.001	0.001
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	6.4	5.3	5.0	5.0	5.1	5.2	7.9	8.2	8.7	8.8	5.0	4.9	4.9	4.9	4.8	4.8	4.7	4.8	4.5	4.5	3.7	0.8	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

None

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdditionalPaidInCapital

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27
Value	43000.0	139000.0	141000.0	124000.0	195000.0	199000.0	201000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	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
Percentage of Assets us-gaap:AdditionalPaidInCapital	0.0	0.0	0.0	0.0	0.0	0.0	0.0

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	4.726	3.264	-3.623	2.648	7.474	3.741	-0.259	-1.638	3.477	-1.048	2.55	2.501	8.415	7.162	4.805	7.799	-5.818	2.811	8.811	9.339	9.71	6.596	6.369	6.947	3.931	2.38	8.676	7.832	4.72	10	8.658	14
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
Percentage of Revenues	0.0	20.6	-26.4	17.7	58.1	33.4	-2.5	-5.9	13.3	-3.5	9.3	9.1	26.7	20.0	14.0	20.6	-15.4	8.1	20.8	19.1	24.5	14.8	14.7	16.8	8.5	5.2	19.9	16.6	9.4	19.7	16.9	31.3

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	1.951	-19.8	-19.357	-21.71	-8.066	1.882	0.594	110	0.032	-13.267	-54.909	-3.651	3.481	13	-13.354	26	-35.508	35	-29.011	-5.263	10	-83.902	-1.877	19	-2.066	-1.255	-15.793	-17.741	-18.446	44	-0.003	11
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	0.0	-124.9	-141.1	-145.2	-62.8	16.8	5.7	396.3	0.1	-44.5	-200.3	-13.2	11.1	38.9	-38.9	71.0	-93.9	102.5	-68.5	-10.8	27.6	-188.6	-4.3	47.7	-4.4	-2.7	-36.2	-37.5	-36.6	85.7	-0.0	23.5

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	-3682000.0	-2015000.0	-1756000.0	-1978000.0	-1991000.0	-1448000.0	-1976000.0	-121930000.0	-3024000.0	-2991000.0	-2767000.0	-2773000.0	-2773000.0	1009000.0	-4525000.0	-6980000.0	-38999000.0	-2200000.0	-587000.0	-2012000.0	-1395000.0	-1835000.0	-2035000.0	-2173000.0	-1952000.0	-2048000.0	-978000.0	-2075000.0	-1381000.0	-1961000.0	-20926000.0	-1674000.0
Percentage of NetCashProvidedByUsedInFinancingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	-12.7	-12.8	-13.2	-15.5	-12.9	-19.0	-438.5	-11.6	-10.0	-10.1	-10.0	-8.8	2.8	-13.2	-18.4	-103.1	-6.3	-1.4	-4.1	-3.5	-4.1	-4.7	-5.3	-4.2	-4.4	-2.2	-4.4	-2.7	-3.8	-40.9	-3.6

None

us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease

Period End	2020-05-31	2019-06-02	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	2.995	-21.04	-1.617	-12.338	0.401	-17.122	-55.125	-4.036	3.036	-3.422	9.103	21	-12.644	27	-79.979	35	-20.657	1.946	18	-79.148	2.966	24	-0.225	-0.915	-8.146	-12.123	-15.1	52	-12.102	23
Percentage of CashAndCashEquivalentsPeriodIncreaseDecrease	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	-140.7	-15.6	-44.4	1.5	-57.4	-201.1	-14.6	11.5	-11.8	28.9	58.8	-36.8	73.3	-211.4	103.3	-48.8	4.0	47.2	-177.9	6.8	59.6	-0.5	-2.0	-18.7	-25.6	-29.9	101.7	-23.6	50.8

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	4.726	3.264	-3.623	2.648	7.474	3.741	-0.259	-1.638	3.477	-1.048	2.55	2.501	8.415	7.162	4.805	7.799	-5.818	2.811	8.811	9.339	9.71	6.596	6.369	6.947	3.931	2.38	8.676	7.832	4.72	10	8.658	14
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
Percentage of Revenues	0.0	20.6	-26.4	17.7	58.1	33.4	-2.5	-5.9	13.3	-3.5	9.3	9.1	26.7	20.0	14.0	20.6	-15.4	8.1	20.8	19.1	24.5	14.8	14.7	16.8	8.5	5.2	19.9	16.6	9.4	19.7	16.9	31.3

None

us-gaap:NetIncomeLoss

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-08-30	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	1.957	2.384	2.446	2.135	2.587	103	3.691	2.7	3.168	17	0.716	0.52	1.394	2.477	1.875	1.981	2.95	4.574	4.109	4.569	4.777	4.841	2.031	4.955	4.955	8.216	-60.024	4.721	8.045	4.929	4.072	4.71	3.246	4.933	3.151	5.379	7.67	7.242	8.285	5.02	9.447
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
Percentage of Revenues	0.0	15.4	15.4	15.6	17.3	624.2	28.7	24.1	30.5	64.6	2.7	1.7	5.1	9.0	7.1	6.8	9.4	12.8	12.0	12.0	12.6	13.4	5.9	11.7	0.0	16.8	-157.3	11.9	18.1	11.3	9.5	11.4	7.0	10.7	7.2	11.4	15.2	14.0	16.2	10.7	17.3

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27
Value	1.957	2.446	2.135	2.587	3.691	2.7	3.168
Percentage of NetIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Revenues	0.0	15.4	15.6	17.3	28.7	24.1	30.5
Percentage of Revenues us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0

None

us-gaap:DepreciationDepletionAndAmortization

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	277000.0	409000.0	367000.0	366000.0	452000.0	161000.0	704000.0	750000.0	724000.0	740000.0	807000.0	734000.0	720000.0	825000.0	827000.0	845000.0	847000.0	840000.0	837000.0	890000.0	865000.0	898000.0	1012000.0	995000.0	968000.0	1034000.0	1070000.0	1100000.0	1598000.0	1437000.0	1427000.0	1429000.0	1560000.0	1723000.0
Percentage of DepreciationDepletionAndAmortization	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:ShareBasedCompensation

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	43000.0	139000.0	141000.0	124000.0	194000.0	199000.0	201000.0	736000.0	234000.0	235000.0	240000.0	246000.0	264000.0	352000.0	352000.0	343000.0	351000.0	422000.0	419000.0	307000.0	304000.0	301000.0	240000.0	276000.0	271000.0	256000.0	193000.0	194000.0	190000.0	161000.0	201000.0	210000.0	209000.0	200000.0
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

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	1.951	-19.8	-19.357	-21.71	-8.066	1.882	0.594	110	0.032	-13.267	-54.909	-3.651	3.481	13	-13.354	26	-35.508	35	-29.011	-5.263	10	-83.902	-1.877	19	-2.066	-1.255	-15.793	-17.741	-18.446	44	-0.003	11
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	0.0	-124.9	-141.1	-145.2	-62.8	16.8	5.7	396.3	0.1	-44.5	-200.3	-13.2	11.1	38.9	-38.9	71.0	-93.9	102.5	-68.5	-10.8	27.6	-188.6	-4.3	47.7	-4.4	-2.7	-36.2	-37.5	-36.6	85.7	-0.0	23.5

None

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	2541000.0	2109000.0	394000.0	1860000.0	229000.0	157000.0	13000.0	183000.0	203000.0	395000.0	105000.0	48000.0	100000.0	53000.0	41000.0	78000.0	94000.0	50000.0	176000.0	149000.0	179000.0	53000.0	160000.0	149000.0	464000.0	571000.0	231000.0	388000.0	546000.0	802000.0	1143000.0	1503000.0	1114000.0	732000.0
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

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	-3682000.0	-2015000.0	-1756000.0	-1978000.0	-1991000.0	-1448000.0	-1976000.0	-121930000.0	-3024000.0	-2991000.0	-2767000.0	-2773000.0	-2773000.0	1009000.0	-4525000.0	-6980000.0	-38999000.0	-2200000.0	-587000.0	-2012000.0	-1395000.0	-1835000.0	-2035000.0	-2173000.0	-1952000.0	-2048000.0	-978000.0	-2075000.0	-1381000.0	-1961000.0	-20926000.0	-1674000.0
Percentage of NetCashProvidedByUsedInFinancingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	-12.7	-12.8	-13.2	-15.5	-12.9	-19.0	-438.5	-11.6	-10.0	-10.1	-10.0	-8.8	2.8	-13.2	-18.4	-103.1	-6.3	-1.4	-4.1	-3.5	-4.1	-4.7	-5.3	-4.2	-4.4	-2.2	-4.4	-2.7	-3.8	-40.9	-3.6

None

us-gaap:PaymentsOfDividendsCommonStock

Period End	2020-05-31	2019-06-02
Value	2.038	2.049
Percentage of PaymentsOfDividendsCommonStock	100.0	100.0

None

us-gaap:PaymentsForRepurchaseOfCommonStock

Period End	2020-05-31	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01
Value	1.644	0.263	0.0	2.441	9.484	0.172	0.0	0.0
Percentage of PaymentsForRepurchaseOfCommonStock	100.0	100.0	0.0	100.0	100.0	100.0	0.0	0.0

None

us-gaap:EffectiveIncomeTaxRateContinuingOperations

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28
Value	0.27	0.276	0.257	0.291	0.229	-0.316	0.176	-17.482	0.313	0.23	-1.943	-0.005	0.064	0.073	0.139	-0.001	0.134	0.125	0.105	0.018	0.131	0.167	0.033	-0.094	0.196	0.182	0.238	0.192	-0.012	0.131	0.186
Percentage of EffectiveIncomeTaxRateContinuingOperations	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-05-27	2018-02-25	2017-02-26	2016-11-27	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-03-02	2013-03-03	2012-11-25	2012-08-26	2012-02-26	2011-02-27	2010-02-28
Value	637480.0	510630.0	518360.0	559240.0	582210.0	540710.0	748900.0	875250.0	885550.0	1070500.0	1077300.0	1226400.0	1027000.0	1055400.0	1134500.0	966690.0	1081100.0	977780.0	1023100.0	822610.0	915950.0	802090.0	1018100.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-05-27	2018-02-25	2017-02-26	2016-11-27	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-03-02	2013-03-03	2012-11-25	2012-08-26	2012-02-26	2011-02-27	2010-02-28
Value	12.47	12.45	13.48	13.5	13.47	13.49	17.28	17.56	17.55	21.08	21.05	21.19	22.49	22.51	22.43	22.55	23.84	25.54	25.39	25.33	25.4	26.05	24.89
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:DeferredTaxAssetsNet

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	1.652	1.869	1.869	4.83	7.042	7.312	10	8.915	6.977	8.366
Percentage of DeferredTaxAssetsNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

None

us-gaap:UnrecognizedTaxBenefits

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27
Value	4164000.0	937000.0	314000.0	1024000.0	1255000.0	1135000.0	276000.0	3053000.0	3999000.0	2044000.0
Percentage of UnrecognizedTaxBenefits	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:UnrecognizedTaxBenefits us-gaap:BalanceSheetLocation

us-gaap:OtherNoncurrentLiabilities

Period End	2020-03-01	2019-03-03	2014-03-02
Value	4356000.0	1016000.0	124000.0
Percentage of UnrecognizedTaxBenefits	104.6	108.4	44.9

None

us-gaap:DeferredTaxAssetsValuationAllowance

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	3.175	2.755	2.755	10	10	11	11	11	12	11
Percentage of DeferredTaxAssetsValuationAllowance	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:IncomeTaxAuthority, us-gaap:IncomeTaxAuthorityName

pke:NelcoTechnologyZhuhaiFTZLtd, us-gaap:StateAndLocalJurisdiction, us-gaap:NewYorkStateDivisionOfTaxationAndFinance

Period End	2020-03-01	2019-03-03
Value	3.175	2.755
Percentage of DeferredTaxAssetsValuationAllowance	0.0	100.0

pke:DisposalGroupIncludingDiscontinuedOperationRestructuringCharges

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26
Value	20000.0	484000.0	82000.0	33000.0	836000.0	454000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationRestructuringCharges	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AmortizationOfDebtDiscountPremium

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	-8000.0	16000.0	4000.0	-56000.0	-58000.0	2000.0	22000.0	66000.0	96000.0	81000.0	44000.0	80000.0	76000.0	145000.0	133000.0	148000.0	284000.0	249000.0	205000.0	128000.0	214000.0	316000.0	206000.0	271000.0	409000.0	437000.0	397000.0	306000.0	432000.0	279000.0	409000.0	361000.0	292000.0	781000.0
Percentage of AmortizationOfDebtDiscountPremium	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26
Value	2.995	-18.551	-24.736	-21.04	-2.583	4.175	-1.641	-13.373	0.485
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26
Value	-0.015	-0.36	0.083	-0.127	3.886	0.512	1.333	8.058	1.064
Percentage of CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26
Value	-0.02	-0.484	0.111	-0.169	2.23	1.057
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26
Value	-0.02	-0.484	-0.177	-0.169	-0.715	1.057
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26
Value	-0.005	-0.124	0.028	-0.042	0.617	0.181
Percentage of DiscontinuedOperationTaxEffectOfDiscontinuedOperation	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DividendsCash us-gaap:StatementEquityComponents

us-gaap:DividendsCash

us-gaap:RetainedEarnings

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27
Value	2.038	2.051	2.05	2.049	2.028	2.024	2.023
Percentage of DividendsCash	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	-0.015	-0.249	-0.36	0.083	-0.127	102	1.613	0.876	2.352	0.768	0.372	-0.339	1.322
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	100.0	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:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

Period End	2020-03-01	2019-12-01	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	-0.01	-0.02	5.02	0.08	0.04	0.12	0.04	0.02	-0.01	0.07
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

Period End	2020-03-01	2019-12-01	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	-0.01	-0.02	4.99	0.08	0.04	0.12	0.04	0.02	-0.01	0.07
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables

Period End	2020-05-31	2019-06-02
Value	41000.0	-97000.0
Percentage of IncreaseDecreaseInAccountsAndOtherReceivables	100.0	100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

Period End	2020-05-31	2019-06-02
Value	5.41	71
Percentage of IncreaseDecreaseInAccruedLiabilities	100.0	100.0

us-gaap:IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable

Period End	2020-05-31	2019-06-02
Value	8.405	49
Percentage of IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	100.0	100.0

us-gaap:IncreaseDecreaseInOperatingCapital

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2017-11-26	2017-08-27	2017-05-28	2016-11-27	2016-08-28	2016-05-29	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2011-11-27	2011-08-28	2011-05-29	2010-11-28
Value	-2498000.0	-216000.0	6238000.0	470000.0	-1124000.0	-2800000.0	4354000.0	-2700000.0	5116000.0	-65000.0	1194000.0	2916000.0	-4168000.0	972000.0	-1719000.0	1196000.0	-1355000.0	-2473000.0	392000.0	-3531000.0	2991000.0	208000.0	-510000.0	3130000.0	4153000.0	-576000.0	4987000.0	-964000.0	-6976000.0
Percentage of IncreaseDecreaseInOperatingCapital	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:InterestAndOtherIncome

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28	2010-08-29
Value	656000.0	802000.0	863000.0	948000.0	393000.0	357000.0	340000.0	441000.0	734000.0	751000.0	749000.0	527000.0	430000.0	369000.0	378000.0	340000.0	227000.0	317000.0	265000.0	222000.0	226000.0	147000.0	139000.0	77000.0	64000.0	143000.0	179000.0	198000.0	-1395000.0	188000.0	1794000.0	221000.0	228000.0	123000.0	218000.0
Percentage of InterestAndOtherIncome	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:NetCashProvidedByUsedInContinuingOperations

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26
Value	3010000.0	-18191000.0	-24819000.0	-20913000.0	-6334000.0	3683000.0	-2971000.0	-21391000.0	-439000.0
Percentage of NetCashProvidedByUsedInContinuingOperations	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:NetCashProvidedByUsedInDiscontinuedOperations

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26
Value	-0.015	-0.36	0.083	-0.127	3.751	0.492	1.33	8.018	0.924
Percentage of NetCashProvidedByUsedInDiscontinuedOperations	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29
Value	-3682000.0	-2015000.0	-1756000.0	-1978000.0	-1991000.0	-1448000.0	-1976000.0	-121930000.0	-3024000.0	-2991000.0	-2767000.0	-2773000.0	-2773000.0	-2774000.0	-2773000.0	1009000.0	-4525000.0
Percentage of NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	100.0	100.0	100.0	100.0	100.0	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:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29
Value	1.951	-19.8	-19.357	-21.71	-7.931	1.902	0.597	110	0.307	-13.267	-54.909	-3.651	3.847	-1.199	3.481	13	-13.354
Percentage of NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	100.0	100.0	100.0	100.0	100.0	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:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29
Value	4.741	3.624	-3.706	2.775	3.588	3.229	-1.592	-9.696	1.93	-1.048	2.55	2.501	1.849	0.402	8.415	7.162	4.805
Percentage of NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	100.0	100.0	100.0	100.0	100.0	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

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2015-11-29
Value	204000.0	-210000.0	193000.0	346000.0	19000.0	126000.0	-35000.0	54000.0	-847000.0	88000.0	-190000.0	-31000.0	-190000.0	11000.0	-85000.0
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

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax us-gaap:StatementScenario

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

pke:GainsOnMarketableSecurities

Period End	2020-05-31	2019-12-01	2019-06-02	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2012-11-25
Value	17000.0	1000.0	8000.0	-96000.0	17000.0	27000.0	69000.0	68000.0	105000.0	-93000.0	148000.0	1000.0	11000.0	3000.0	3000.0	8000.0	0	0	8000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	100.0	100.0	100.0	100.0	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

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27
Value	204000.0	-210000.0	193000.0	346000.0	11000.0	108000.0	-16000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax us-gaap:StatementScenario

pke:GainsOnMarketableSecurities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25
Value	288000.0	24000.0	193000.0	344000.0	0	21000.0	3000.0	65000.0	3000.0	11000.0	80000.0	-47000.0	70000.0	14000.0	103000.0	84000.0	-10000.0	32000.0	176000.0	4000.0	30000.0	39000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	141.2	-11.4	100.0	99.4	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

pke:LossesOnMarketableSecurities

Period End	2020-05-31	2019-12-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2012-11-25	2012-08-26
Value	-67000.0	-248000.0	-3000.0	-19000.0	-1000.0	-17000.0	-1267000.0	-805000.0	0	-117000.0	-50000.0	-292000.0	-45000.0	-13000.0	179000.0	-264000.0	-128000.0	-31000.0	-7000.0	-12000.0	-3000.0	29000.0	-75000.0	-49000.0	-9000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-32.8	118.1	-0.9	-172.7	-0.9	106.2	0.0	0.0	0.0	0.0	0.0	0.0	0.0	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:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:PaymentsForRestructuring

pke:FacilityLeaseCosts, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26
Value	244000.0	338000.0	205000.0	205000.0	933000.0	273000.0	181000.0	-273000.0	-511000.0	-342000.0
Percentage of PaymentsForRestructuring	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherRestructuring, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-05-28
Value	7000.0	-4000.0	55000.0	20000.0	180000.0	43000.0	66000.0	-52000.0	-595000.0	-531000.0	-121000.0
Percentage of PaymentsForRestructuring	2.9	-1.2	26.8	9.8	19.3	15.8	36.5	19.0	116.4	155.3	0.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringPlan

pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-05-28
Value	251000.0	643000.0	275000.0	225000.0	1113000.0	316000.0	247000.0	-325000.0	-2187000.0	-1903000.0	-512000.0
Percentage of PaymentsForRestructuring	102.9	190.2	134.1	109.8	119.3	115.8	136.5	119.0	428.0	556.4	0.0

us-gaap:PaymentsToAcquireMarketableSecurities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	15	30	36	34	11	4.927	2.484	2.081	20	66	75	28	17	11	16	13	43	8.465	40	0.001	38	37	27	123	47	4.995	40	73	54	30	65	21	47	48
Percentage of PaymentsToAcquireMarketableSecurities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:ProceedsFromSaleAndMaturityOfMarketableSecurities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-05-29	2011-02-27	2010-11-28
Value	19	12	17	14	4.158	6.989	3.091	112	20	53	20	24	21	9.904	19	46	25	38	72	38	14	48	69	47	60
Percentage of ProceedsFromSaleAndMaturityOfMarketableSecurities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:RestructuringCharges us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringCharges

pke:FacilityLeaseCosts, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-02-25	2017-11-26	2017-05-28
Value	13000.0	75000.0	12000.0	13000.0	81000.0	18000.0	51000.0	2749000.0	-4000.0	2753000.0
Percentage of RestructuringCharges	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherRestructuring, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-05-28
Value	7000.0	-4000.0	55000.0	20000.0	180000.0	43000.0	66000.0	52000.0	599000.0	410000.0	67000.0
Percentage of RestructuringCharges	53.8	-5.3	458.3	153.8	222.2	238.9	129.4	0.0	21.8	-10250.0	2.4

us-gaap:RestructuringCharges us-gaap:RestructuringPlan

pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	20000.0	380000.0	82000.0	33000.0	261000.0	61000.0	117000.0	52000.0	4429000.0	360000.0	2813000.0	1250000.0
Percentage of RestructuringCharges	153.8	506.7	683.3	253.8	322.2	338.9	229.4	0.0	161.1	-9000.0	0.0	45.4

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:Range, us-gaap:TitleOfIndividual, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

srt:Maximum, pke:DirectorsAndCertainOfEmployees, pke:The2018StockOptionPlan

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02
Value	0.272	0	0	0.315
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	100.0	0.0	0.0	100.0

srt:Minimum, pke:DirectorsAndCertainOfEmployees, pke:The2018StockOptionPlan

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02
Value	0.269	0	0	0.304
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	98.9	0.0	0.0	96.5

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:Range, us-gaap:TitleOfIndividual, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

srt:Maximum, pke:DirectorsAndCertainOfEmployees, pke:The2018StockOptionPlan

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02
Value	0.0042	0	0	0.0226
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	100.0	0.0	0.0	100.0

srt:Minimum, pke:DirectorsAndCertainOfEmployees, pke:The2018StockOptionPlan

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02
Value	0.0023	0	0	0.0224
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	54.8	0.0	0.0	99.1

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27
Value	129100.0	0	0	114450.0	0	0	2650.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	100.0	0.0	0.0	100.0	0.0	0.0	100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross us-gaap:TitleOfIndividual, us-gaap:PlanName

pke:DirectorsAndCertainOfEmployees, pke:The2018StockOptionPlan

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02
Value	129100.0	0	0	114450.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	100.0	0.0	0.0	100.0

us-gaap:StockRepurchasedDuringPeriodShares

Period End	2020-05-31	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2017-11-26	2017-08-27	2017-05-28	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2014-11-30	2012-11-25
Value	137400.0	0	0	0	0	0	0	0	0	0	0	0	155000.0	0	444830.0	444830.0	8000.0	4000.0
Percentage of StockRepurchasedDuringPeriodShares	100.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	100.0	0.0	100.0	100.0	100.0	100.0

us-gaap:TreasuryStockSharesAcquired us-gaap:StatementEquityComponents

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStock

Period End	2020-05-31
Value	137400.0
Percentage of TreasuryStockSharesAcquired	100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStock

Period End	2020-05-31
Value	1.644
Percentage of TreasuryStockValueAcquiredCostMethod	100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2018-11-25	2018-08-26	2018-05-27	2017-11-26	2017-08-27	2017-05-28	2015-08-30	2015-05-31	2014-11-30	2014-08-31	2014-08-30	2014-06-01	2013-12-01	2013-09-01	2013-06-02	2012-11-25	2012-08-26	2012-05-27	2011-11-27	2011-08-28
Value	58000.0	99000.0	102000.0	94000.0	74000.0	129.0	54000.0	24000.0	14000.0	9000.0	3000.0	19000.0	42000.0	104000.0	104000.0	108000.0	60000.0	16000.0	16000.0	2000.0	19000.0	53000.0	2000.0	35000.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

pke:AociDebtSecuritiesAvailableforsaleAdjustmentAfterTax

Period End	2020-03-01	2019-03-03
Value	690000.0	1157000.0
Percentage of AociDebtSecuritiesAvailableforsaleAdjustmentAfterTax	100.0	100.0

pke:CashAndMarketableSecurities us-gaap:FairValueByAssetClass

pke:CashAndMarketableSecurities

pke:CompanysWhollyOwnedForeignSubsidiaries

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28
Value	29	126	108	237	231
Percentage of CashAndMarketableSecurities	100.0	100.0	100.0	100.0	100.0

pke:StockRepurchaseProgramPercentageOfOutstandingSharesAuthorizedToBeRepurchased us-gaap:SubsequentEventType

pke:StockRepurchaseProgramPercentageOfOutstandingSharesAuthorizedToBeRepurchased

us-gaap:SubsequentEvent

Period End	2020-06-03	2020-05-10	2020-01-10	2019-10-04	2019-07-03	2019-05-10	2019-01-03	2018-06-27	2017-05-05
Value	0.068	0.075	0.075	0.075	0.075	0.075	0.076	0.076	0.076
Percentage of StockRepurchaseProgramPercentageOfOutstandingSharesAuthorizedToBeRepurchased	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

pke:StockoldersEquityIncludingTreasuryStock

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-03-02
Value	151	150	170	170	169	168	154	152	151	150	194	196	197	197	197	197	197	195	192	190	187	184	212	200
Percentage of StockoldersEquityIncludingTreasuryStock	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:AccruedEmployeeBenefitsCurrent

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	1000.0	6000.0	93000.0	147000.0	279000.0	262000.0	274000.0	297000.0	474000.0
Percentage of AccruedEmployeeBenefitsCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccruedIncomeTaxesNoncurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25
Value	15	15	15	15	17	17	18	18	18	20
Percentage of AccruedIncomeTaxesNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccruedProfessionalFeesCurrent

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	467000.0	451000.0	597000.0	578000.0	762000.0	671000.0	1116000.0	1002000.0	1498000.0
Percentage of AccruedProfessionalFeesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccruedSalariesCurrent

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	578000.0	823000.0	1263000.0	1361000.0	2078000.0	2117000.0	1910000.0	2210000.0	2698000.0
Percentage of AccruedSalariesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	668000.0	-22000.0	-1179000.0	-334000.0	141000.0	200000.0	138000.0	-34000.0	24000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-03-03	2012-02-26	2011-02-27
Value	77000.0	73000.0	44000.0	40000.0	36000.0	32000.0	32000.0	32000.0	257000.0	259.0	258000.0	285000.0	290000.0	294000.0	361000.0	326000.0	324000.0	324000.0	365000.0	400000.0	400000.0	396000.0	400000.0	409000.0	443000.0	416000.0	421000.0	425000.0	423000.0	598000.0	599000.0
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

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	1163000.0	846000.0	499000.0	705000.0	424000.0	51000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FinancialInstrument

us-gaap:DomesticCorporateDebtSecurities

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	118000.0	82000.0	59000.0	48000.0	38000.0	7000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	10.1	9.7	11.8	6.8	9.0	13.7

us-gaap:USTreasuryAndGovernment

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	1045000.0	764000.0	440000.0	657000.0	386000.0	44000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	89.9	90.3	88.2	93.2	91.0	86.3

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	59000.0	111000.0	50000.0	14000.0	85000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	100.0	100.0	100.0	100.0	100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FinancialInstrument

us-gaap:DomesticCorporateDebtSecurities

Period End	2020-05-31	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	59000.0	23000.0	16000.0	1000.0	32000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	100.0	20.7	32.0	7.1	37.6

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	111	116	137	119	100	80
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FinancialInstrument

us-gaap:DomesticCorporateDebtSecurities

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	18	15	27	23	11	11
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis	16.6	13.3	20.4	19.3	11.9	14.8

us-gaap:USTreasuryAndGovernment

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	93	100	109	96	88	68
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis	83.4	86.7	79.6	80.7	88.1	85.2

us-gaap:AvailableForSaleSecuritiesDebtSecurities

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	112	116	137	120	101	80
Percentage of AvailableForSaleSecuritiesDebtSecurities	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	112	116	137	120	101	80
Percentage of AvailableForSaleSecuritiesDebtSecurities	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel1, us-gaap:DomesticCorporateDebtSecurities

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	18	15	27	23	11	11
Percentage of AvailableForSaleSecuritiesDebtSecurities	16.5	13.3	20.4	19.2	11.8	14.8

us-gaap:FairValueInputsLevel1, us-gaap:USTreasuryAndGovernment

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	94	101	109	97	89	68
Percentage of AvailableForSaleSecuritiesDebtSecurities	83.5	86.7	79.6	80.8	88.2	85.2

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

us-gaap:DomesticCorporateDebtSecurities

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	18	15	27	23	11	11
Percentage of AvailableForSaleSecuritiesDebtSecurities	16.5	13.3	20.4	19.2	11.8	14.8

us-gaap:USTreasuryAndGovernment

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03
Value	94	101	109	97	89	68
Percentage of AvailableForSaleSecuritiesDebtSecurities	83.5	86.7	79.6	80.8	88.2	85.2

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

Period End	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-02-26	2016-02-28
Value	5.41	6.68	25	49	71	16	20	16	18	30	30	102	97
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	100.0	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:CommonStockCapitalSharesReservedForFutureIssuance

Period End	2020-03-01	2019-03-03
Value	692100.0	1340700.0
Percentage of CommonStockCapitalSharesReservedForFutureIssuance	100.0	100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance us-gaap:PlanName

pke:The2018StockOptionPlan

Period End	2020-03-01
Value	692100.0
Percentage of CommonStockCapitalSharesReservedForFutureIssuance	100.0

us-gaap:DeferredIncomeTaxLiabilities

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	2.444	1.855	1.855	4.59	48	50	65	66	0.812	1.062
Percentage of DeferredIncomeTaxLiabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsGross

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	4.827	4.624	4.624	15	17	18	22	20	19	20
Percentage of DeferredTaxAssetsGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	2.608	2.709	2.709	10	11	10	14	12	11	9.753
Percentage of DeferredTaxAssetsOperatingLossCarryforwards	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsOther

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	478000.0	574000.0	574000.0	671000.0	282000.0	578000.0	531000.0	665000.0	369000.0	2220000.0
Percentage of DeferredTaxAssetsOther	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	621000.0	135000.0	135000.0	360000.0	677000.0	1363000.0	1811000.0	1695000.0	1343000.0	2019000.0
Percentage of DeferredTaxAssetsTaxCreditCarryforwards	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03
Value	1120000.0	1206000.0	1206000.0	1269000.0	1865000.0	1925000.0	1899000.0	1693000.0	953000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilitiesOther

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03
Value	699000.0	154000.0	154000.0	771000.0	781000.0	1281000.0	1257000.0	1616000.0	741000.0
Percentage of DeferredTaxLiabilitiesOther	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	1743000.0	1368000.0	1368000.0	619000.0	572000.0	526000.0	446000.0	867000.0	468000.0	741000.0
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings

Period End	2020-03-03	2019-03-03	2019-02-25	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	0.002	0.333	0.333	3.2	47	48	63	63	0.344	0.321
Percentage of DeferredTaxLiabilitiesUndistributedForeignEarnings	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:InventoryFinishedGoodsNetOfReserves

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02
Value	994000.0	806000.0	739000.0	428000.0	923000.0	479000.0	937000.0	1159000.0	2931000.0	2173000.0	2579000.0	1533000.0	2796000.0	2585000.0	3048000.0	2455000.0	2792000.0	2172000.0	3445000.0	3301000.0	4028000.0	3605000.0	3637000.0	3916000.0	4421000.0	3223000.0
Percentage of InventoryFinishedGoodsNetOfReserves	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:InventoryRawMaterialsNetOfReserves

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02
Value	5481000.0	5319000.0	2764000.0	3486000.0	4025000.0	4556000.0	3407000.0	2570000.0	6940000.0	6826000.0	6157000.0	7305000.0	5508000.0	5842000.0	6822000.0	6844000.0	6607000.0	5462000.0	6446000.0	7468000.0	7187000.0	7376000.0	7434000.0	8011000.0	6983000.0	7253000.0
Percentage of InventoryRawMaterialsNetOfReserves	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:InventoryWorkInProcessNetOfReserves

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-11-29	2015-08-30	2015-05-31	2015-03-01	2014-11-30	2014-08-31	2014-06-01	2014-03-02
Value	205000.0	254000.0	433000.0	712000.0	292000.0	232000.0	233000.0	265000.0	2642000.0	2005000.0	2424000.0	2714000.0	2264000.0	2329000.0	2341000.0	2169000.0	2269000.0	2215000.0	2343000.0	2895000.0	2923000.0	3114000.0	2788000.0	2955000.0	3433000.0	3097000.0
Percentage of InventoryWorkInProcessNetOfReserves	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

pke:LeasesWithRenewalOptions

Period End	2020-03-01
Value	161000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths us-gaap:BalanceSheetLocation

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

pke:AccruedLiabilitiesCurrent

Period End	2020-03-01
Value	334000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths us-gaap:LeaseContractualTerm

pke:LeasesWithRenewalOptions

Period End	2020-03-01
Value	152000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	45.5

pke:LeasesWithoutRenewalOptions

Period End	2020-03-01
Value	152000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	45.5

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

pke:LeasesWithRenewalOptions

Period End	2020-03-01
Value	61000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour	100.0

pke:LeasesWithoutRenewalOptions

Period End	2020-03-01
Value	61000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

pke:LeasesWithRenewalOptions

Period End	2020-03-01
Value	61000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree	100.0

pke:LeasesWithoutRenewalOptions

Period End	2020-03-01
Value	61000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

pke:LeasesWithRenewalOptions

Period End	2020-03-01
Value	90000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	100.0

pke:LeasesWithoutRenewalOptions

Period End	2020-03-01
Value	90000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear us-gaap:BalanceSheetLocation

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:AccountsPayableAndAccruedLiabilities

Period End	2020-05-31
Value	136000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear us-gaap:LeaseContractualTerm

pke:LeasesWithRenewalOptions

Period End	2020-05-31
Value	114000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	83.8

us-gaap:MarketableSecuritiesCurrent

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26	2016-11-27	2016-08-28	2016-05-29	2016-02-28	2015-03-01	2014-06-01	2014-03-02	2013-12-01	2013-09-01	2013-06-02	2013-03-03	2012-11-25	2012-08-26	2012-05-27	2012-02-26	2011-11-27	2011-08-28	2011-02-27
Value	112	116	137	120	101	80	95	87	89	89	201	202	190	136	132	136	135	139	130	142	137	162	174	90	89	120	141	139	139	124	107	138
Percentage of MarketableSecuritiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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:OperatingLeaseLiability

Period End	2020-05-31	2020-03-01
Value	387000.0	420000.0
Percentage of OperatingLeaseLiability	100.0	100.0

us-gaap:OperatingLeaseLiability us-gaap:LeaseContractualTerm

pke:LeasesWithRenewalOptions

Period End	2020-05-31	2020-03-01
Value	387000.0	420000.0
Percentage of OperatingLeaseLiability	100.0	100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:ForeignCountry

Period End	2020-03-01	2019-03-03	2018-02-25
Value	7.798	7.862	7.862
Percentage of OperatingLossCarryforwards	100.0	100.0	100.0

us-gaap:StateAndLocalJurisdiction

Period End	2020-03-01	2019-03-03	2018-02-25
Value	2.515	3.161	5.909
Percentage of OperatingLossCarryforwards	32.3	40.2	75.2

us-gaap:PreferredStockValue

Period End	2020-05-31	2020-03-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2015-03-01	2014-03-02	2013-03-03
Value	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	2096000.0	0	0	0
Percentage of PreferredStockValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	0.0

us-gaap:RestructuringAndRelatedCostCostIncurredToDate1 us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringAndRelatedCostCostIncurredToDate1

pke:EquipmentRemoval, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01
Value	586000.0	586000.0	324000.0	15000.0
Percentage of RestructuringAndRelatedCostCostIncurredToDate1	100.0	100.0	100.0	100.0

pke:FacilityLeaseCosts, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27
Value	2942000.0	2929000.0	2941000.0	2854000.0	2842000.0	2830000.0	2818000.0	2800000.0	2749000.0	2749000.0	2749000.0	2753000.0
Percentage of RestructuringAndRelatedCostCostIncurredToDate1	502.0	499.8	907.7	19026.7	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:EmployeeSeverance, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1076000.0	1122000.0	1183000.0
Percentage of RestructuringAndRelatedCostCostIncurredToDate1	184.5	184.5	333.6	7206.7	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:OtherRestructuring, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	934000.0	927000.0	839000.0	855000.0	799000.0	779000.0	760000.0	717000.0	651000.0	599000.0	598000.0	188000.0	67000.0
Percentage of RestructuringAndRelatedCostCostIncurredToDate1	159.4	158.2	259.0	5700.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RestructuringAndRelatedCostCostIncurredToDate1 us-gaap:RestructuringPlan

pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	5543000.0	5523000.0	5185000.0	4805000.0	4722000.0	4690000.0	4659000.0	4598000.0	4481000.0	4429000.0	4423000.0	4063000.0	1250000.0
Percentage of RestructuringAndRelatedCostCostIncurredToDate1	945.9	942.5	1600.3	32033.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RestructuringAndRelatedCostExpectedCost1 us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringAndRelatedCostExpectedCost1

pke:EquipmentRemoval, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	586000.0	586000.0	615000.0	700000.0	700000.0	700000.0	700000.0	700000.0	700000.0	700000.0	700000.0	700000.0	700000.0
Percentage of RestructuringAndRelatedCostExpectedCost1	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

pke:FacilityLeaseCosts, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	3000000.0	3000000.0	2941000.0	2854000.0	2842000.0	2830000.0	2818000.0	2800000.0	2749000.0	2749000.0	2749000.0	2753000.0	2739000.0
Percentage of RestructuringAndRelatedCostExpectedCost1	511.9	511.9	478.2	407.7	406.0	404.3	402.6	400.0	392.7	392.7	392.7	393.3	391.3

us-gaap:EmployeeSeverance, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1081000.0	1076000.0	1122000.0	1183000.0
Percentage of RestructuringAndRelatedCostExpectedCost1	184.5	184.5	175.8	154.4	154.4	154.4	154.4	154.4	154.4	154.4	153.7	160.3	169.0

us-gaap:OtherRestructuring, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	950000.0	950000.0	863000.0	865000.0	877000.0	889000.0	901000.0	919000.0	970000.0	970000.0	975000.0	925000.0	878000.0
Percentage of RestructuringAndRelatedCostExpectedCost1	162.1	162.1	140.3	123.6	125.3	127.0	128.7	131.3	138.6	138.6	139.3	132.1	125.4

us-gaap:RestructuringAndRelatedCostExpectedCost1 us-gaap:RestructuringPlan

pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	5617000.0	5617000.0	5500000.0	5500000.0	5500000.0	5500000.0	5500000.0	5500000.0	5500000.0	5500000.0	5500000.0	5500000.0	5500000.0
Percentage of RestructuringAndRelatedCostExpectedCost1	958.5	958.5	894.3	785.7	785.7	785.7	785.7	785.7	785.7	785.7	785.7	785.7	785.7

us-gaap:RestructuringReserve

Period End	2020-03-01	2019-03-03
Value	432000.0	1324000.0
Percentage of RestructuringReserve	100.0	100.0

us-gaap:RestructuringReserve us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

pke:FacilityLeaseCosts, pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28
Value	201000.0	432000.0	676000.0	939000.0	1132000.0	1324000.0	1580000.0	1835000.0	1965000.0	2238000.0	2407000.0	2753000.0	2753000.0
Percentage of RestructuringReserve	0.0	100.0	0.0	0.0	0.0	100.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RestructuringReserve us-gaap:RestructuringPlan

pke:ConsolidationOfNelcoProductsIncAndNeltecInc

Period End	2020-05-31	2020-03-01	2019-12-01	2019-09-01	2019-06-02	2019-03-03	2018-11-25	2018-08-26	2018-05-27	2018-02-25	2017-11-26	2017-08-27	2017-05-28	2017-02-26
Value	201000.0	432000.0	676000.0	939000.0	1132000.0	1324000.0	1580000.0	1835000.0	1965000.0	2175000.0	2453000.0	4063000.0	1183000.0	1250000.0
Percentage of RestructuringReserve	0.0	100.0	0.0	0.0	0.0	100.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RestructuringReserveCurrent

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	432000.0	1324000.0	2326000.0	16000.0	64000.0	182000.0	198000.0	304000.0	1685000.0
Percentage of RestructuringReserveCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

Period End	2020-03-01	2019-12-01	2019-03-03	2012-11-25	2012-08-26	2012-02-26
Value	746000.0	1467000.0	1525000.0	486000.0	1566000.0	4338000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03
Value	109980.0	25600.0	196240.0	308310.0	504870.0	271990.0	416790.0	363710.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03
Value	3.96	3.5	6.09	6.09	6.09	8.27	8.41	8.07
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:IncomeTaxAuthority, us-gaap:IncomeTaxAuthorityName

us-gaap:TaxCreditCarryforwardAmount

us-gaap:StateAndLocalJurisdiction, pke:ArizonaDepartmentOfRevenue

Period End	2020-03-01	2019-03-03
Value	576000.0	135000.0
Percentage of TaxCreditCarryforwardAmount	100.0	100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:TaxCreditCarryforward

us-gaap:Research

Period End	2020-03-01	2019-03-03	2018-02-25
Value	45000.0	0	142000.0
Percentage of TaxCreditCarryforwardAmount	7.8	0.0	0.0

us-gaap:TreasuryStockShares

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27
Value	446320.0	479190.0	723570.0	730470.0	730470.0	130640.0	4074.0	4066.0	158.0	158.0
Percentage of TreasuryStockShares	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	193000.0	79000.0	41000.0	16000.0	51000.0	70000.0	98000.0	95000.0	137000.0
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:ValuationAllowancesAndReservesBalance

us-gaap:AllowanceForCreditLoss

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01
Value	0.073	0.032	0.259	0.294	0.324	0.396
Percentage of ValuationAllowancesAndReservesBalance	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ValuationAllowanceOfDeferredTaxAssets

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26	2011-02-27	2010-02-28
Value	3.175	2.755	10	10	11	11	11	12465	11661	10877	9814
Percentage of ValuationAllowancesAndReservesBalance	4349.3	8609.4	4093.4	3595.6	3430.6	3001.8	0.0	0.0	0.0	0.0	0.0

us-gaap:WorkersCompensationLiabilityCurrent

Period End	2020-03-01	2019-03-03	2018-02-25	2017-02-26	2016-02-28	2015-03-01	2014-03-02	2013-03-03	2012-02-26
Value	111000.0	122000.0	210000.0	154000.0	241000.0	300000.0	354000.0	687000.0	969000.0
Percentage of WorkersCompensationLiabilityCurrent	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

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

TTM Greenblatt ROC
_
(None,)

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

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

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

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)

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

PKE

Table of contents

Tables

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue

None

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock

us-gaap:TreasuryStock

None

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued

None

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding us-gaap:SubsequentEventType

us-gaap:SubsequentEvent

None

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

None

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

None

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EmployeeStockOption

None

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic

None

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted

None

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

None

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

None

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementGeographical

srt:Asia

srt:Europe

srt:NorthAmerica

None

us-gaap:Revenues

us-gaap:Revenues

None

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue

None

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold

None

us-gaap:GrossProfit

us-gaap:GrossProfit

None

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense

None

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss

None

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

None

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit

None

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet

None

us-gaap:NetIncomeLoss