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		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Revenue From Contract With Customer Excluding Assessed Tax		58.28	92.01	116.75	85.31	74.18	117.82	118.14	117.80	42.26	107.07	98.68	74.12	41.52	49.86	54.14	47.42	53.08	20.18	65.68	70.86	48.50	65.51	81.42	88.34	55.75	75.26	77.61	68.05	54.11	69.37	69.31	65.84	43.20	33.87	79.38	78.69	49.81	88.47	93.42	66.93	80.30	125.57	118.76	104.03	90.77	74.59	81.98	97.61	84.84	89.61	90.10	73.96	52.22	53.52	66.09	51.71
Revenues		58.28	92.01	116.75	85.31	74.18	117.82	118.14	117.80	42.26	107.07	98.68	74.12	41.52	49.86	54.14	47.42	53.08	20.18	65.68	70.86	48.50	65.51	81.42	88.34	55.75	75.26	77.61	68.05	54.11	69.37	69.31	65.84	43.20	33.87	79.38	78.69	49.81	88.47	93.42	66.93	80.30	125.57	118.76	104.03	90.77	74.59	81.98	97.61	84.84	89.61	90.10	73.96	52.22	53.52	66.09	51.71
Gross Profit		5.01	24.08	3.87	-8.59	21.62	15.19	19.98	0.98	-7.16	26.12	8.19	-0.04	-10.74	7.55	6.45	0.91	16.40	62.15	5.46	3.27	3.26	14.97	12.65	8.27	37.51	6.81	5.53	1.80	6.13	17.51	10.32	7.97	11.05	29.51	8.68	5.54	13.31	28.92	20.87	6.58	9.60	25.14	26.02	27.63	21.38	8.05	21.96	14.40	12.80	19.33	22.00	15.43	5.00	15.16	11.88	6.30
Operating Expenses		2.81	3.67	3.57	2.99	3.37	3.41	3.10	2.49	2.45	4.31	2.05	1.96	2.32	1.86	2.64	2.05	2.42	2.51	2.19	2.08	2.05	2.16	2.42	2.43	2.94	2.97	2.33	2.42	2.65	2.74	2.48	2.60	2.52	2.43	2.74	2.37	2.54	2.59	2.70	2.41	2.15	2.33	2.50	2.65	2.43	NA	NA	NA	NA	NA	NA	2.77	NA	NA	NA	2.06
Research And Development Expense		0.91	1.16	1.16	1.01	1.07	1.01	0.97	0.76	0.68	1.10	0.81	0.80	0.77	0.59	0.79	0.77	0.83	0.86	0.83	0.79	0.71	0.68	0.88	0.78	1.18	1.12	0.94	0.84	0.76	0.60	0.69	0.74	0.69	0.62	0.74	0.67	0.71	0.87	0.73	0.87	0.70	0.87	0.87	0.79	0.92	0.82	0.95	0.83	0.84	0.90	1.00	0.86	0.75	0.91	0.80	0.89
Operating Income Loss		2.20	20.40	0.30	-11.58	18.25	11.78	16.89	-1.51	-9.61	21.82	6.14	-2.00	-13.06	5.70	3.80	-1.14	13.98	59.64	3.27	1.19	1.21	12.80	10.23	5.84	34.57	3.84	3.20	-0.63	3.48	14.78	7.84	5.38	8.53	27.08	5.93	3.18	10.78	26.33	18.18	4.17	7.45	22.81	23.52	24.98	18.95	4.76	19.18	11.57	10.58	16.38	19.36	12.66	3.22	12.60	9.54	4.24
Interest Expense		0.04	0.04	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.03	0.03	0.03	0.03	0.03	0.03	0.06	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.04	0.13	0.06	0.01	0.01
Income Tax Expense Benefit		0.63	-0.03	0.01	0.01	0.01	-1.53	1.70	-0.94	-0.70	1.71	-3.18	-4.47	-4.39	4.14	-0.83	-4.89	-13.21	-11.28	1.01	0.92	0.96	4.68	4.01	2.00	-2.46	-10.24	1.73	0.05	1.60	-2.88	-3.87	-6.92	-1.87	-2.61	2.06	1.12	4.88	-0.98	8.13	3.27	3.72	-2.63	9.35	10.50	6.11	3.57	7.92	4.22	4.87	4.83	7.27	4.93	1.24	3.67	3.45	1.71
Net Income Loss		4.33	23.38	2.78	-9.86	21.08	14.93	15.78	-3.10	-12.40	22.34	9.20	3.48	-8.77	5.47	6.89	15.16	19.04	72.37	6.62	3.69	5.50	1.84	9.45	6.05	40.35	15.95	3.33	0.83	3.40	18.68	12.87	14.22	10.57	29.65	4.85	3.79	8.13	30.13	11.45	5.35	6.27	26.53	15.30	18.16	14.05	6.17	12.55	8.47	7.11	10.62	12.73	8.44	2.72	10.12	6.55	2.76
Comprehensive Income Net Of Tax		4.33	23.38	2.78	-9.88	21.10	14.93	15.72	-3.17	-12.45	22.37	9.15	3.52	-8.82	5.55	6.88	15.31	18.73	72.47	6.62	3.70	5.70	1.69	9.42	6.09	35.77	16.23	3.99	2.92	5.27	17.97	13.75	15.10	11.01	30.61	3.57	2.51	7.53	25.90	10.76	7.86	5.51	27.92	15.20	16.32	19.43	3.59	15.97	7.30	8.24	14.91	9.28	7.89	3.70	9.98	7.12	NA

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Assets		365.38	367.08	345.84	354.46	373.28	355.97	341.34	337.39	324.38	344.33	334.70	342.42	436.42	441.30	436.78	456.85	606.88	586.50	484.27	477.67	479.65	471.15	483.20	477.41	478.03	425.56	437.57	427.59	427.00	529.04	513.03	495.54	495.20	489.11	445.77	460.74	467.45	461.49	435.97	421.60	419.61	414.45	414.30	410.55	405.33	355.24	409.71	391.22	392.66	385.24	371.73	360.54	NA	343.16	NA	NA
Liabilities		160.56	57.20	48.84	60.24	69.18	72.97	62.76	74.58	58.41	55.40	68.14	85.01	73.37	69.42	59.96	86.90	252.24	119.41	79.14	79.19	84.88	82.08	85.36	88.92	95.74	73.97	91.86	85.85	88.44	196.23	85.54	79.60	92.22	94.80	80.08	96.01	103.08	102.48	98.08	89.84	90.72	85.86	97.98	104.71	111.04	94.90	101.96	95.37	100.23	97.01	94.36	88.33	NA	90.83	NA	NA
Liabilities And Stockholders Equity		365.38	367.08	345.84	354.46	373.28	355.97	341.34	337.39	324.38	344.33	334.70	342.42	436.42	441.30	436.78	456.85	606.88	586.50	484.27	477.67	479.65	471.15	483.20	477.41	478.03	425.56	437.57	427.59	427.00	529.04	513.03	495.54	495.20	489.11	445.77	460.74	467.45	461.49	435.97	421.60	419.61	414.45	414.30	410.55	405.33	355.24	409.71	391.22	392.66	385.24	371.73	360.54	NA	343.16	NA	NA
Stockholders Equity		204.82	309.88	297.00	294.22	304.10	283.00	278.58	262.81	265.98	288.93	266.56	257.41	363.05	371.88	376.83	369.94	354.63	467.10	405.13	398.48	394.78	389.08	397.85	388.49	382.29	351.60	345.71	341.74	338.56	332.81	427.49	415.94	402.99	394.31	365.69	364.74	364.37	359.01	337.90	331.76	328.89	328.59	316.32	305.84	294.29	260.33	307.75	295.85	292.43	288.24	277.37	272.21	NA	252.32	NA	NA

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Assets Current		289.30	290.55	267.22	274.27	291.50	273.78	257.72	252.84	237.83	255.83	244.56	249.86	340.09	342.61	335.86	354.47	502.71	480.89	376.99	368.53	369.53	362.33	373.73	366.95	365.13	310.36	320.33	308.20	305.37	405.28	388.38	369.08	367.67	359.82	315.14	329.20	336.91	331.46	304.97	289.40	287.95	283.29	285.70	269.20	264.69	213.94	268.32	249.79	250.53	242.53	230.60	220.68	NA	215.65	NA	NA
Cash And Cash Equivalents At Carrying Value		201.12	219.44	205.92	166.69	145.06	175.64	171.27	129.15	120.98	137.52	116.79	97.59	193.98	198.12	180.17	187.82	248.10	243.33	235.94	222.87	206.02	214.97	199.35	199.92	135.39	114.63	113.25	111.01	94.69	199.27	182.37	173.60	148.31	154.05	176.55	142.36	160.44	124.08	88.63	84.55	101.30	86.46	97.44	87.14	62.21	58.74	114.59	112.03	88.89	89.75	102.56	94.53	79.36	91.06	103.53	115.88
Accounts Receivable Net Current		24.36	28.41	29.49	28.57	25.92	26.20	23.72	37.49	18.05	29.32	26.47	31.33	27.90	21.39	37.21	29.22	128.06	110.26	20.82	21.64	17.61	16.29	18.94	22.39	62.84	21.97	21.28	18.75	19.85	24.36	29.99	24.61	54.47	46.32	19.77	19.65	16.43	50.13	33.49	21.03	17.37	28.62	28.17	24.63	27.90	22.78	19.89	26.45	21.95	35.55	25.77	30.25	NA	35.16	NA	NA
Inventory Net		56.10	32.98	26.91	67.36	69.23	26.76	17.40	31.58	37.62	26.92	43.69	53.51	45.28	33.89	29.09	42.18	41.45	37.57	42.79	36.12	53.33	39.30	48.01	47.52	59.52	43.75	43.52	36.89	51.88	52.09	47.95	58.72	69.91	64.96	34.37	55.99	64.44	45.35	59.18	67.34	42.48	42.16	47.69	50.63	70.70	41.99	49.08	43.36	67.95	57.44	43.72	40.38	NA	37.37	NA	NA
Inventory Finished Goods		18.06	16.23	11.96	30.63	43.05	11.72	10.62	22.43	35.74	12.13	8.12	24.15	25.44	15.45	10.33	22.84	22.81	22.56	18.28	17.77	33.68	23.66	18.67	15.42	25.95	23.00	18.93	21.28	29.18	27.97	21.39	26.89	38.61	35.52	14.29	24.18	30.89	25.37	24.26	25.11	20.60	13.59	21.64	24.35	23.05	15.80	34.85	23.68	NA	19.48	NA	NA	NA	NA	NA	NA
Inventory L I F O Reserve		6.37	9.40	13.71	16.24	15.95	19.73	14.48	20.62	15.31	15.79	11.94	12.90	9.78	5.87	5.62	4.99	6.56	7.88	7.89	8.45	8.73	10.37	10.74	10.12	7.79	8.12	8.25	8.07	4.79	2.92	1.66	1.25	-2.07	3.50	7.21	5.02	4.67	8.34	10.00	10.02	9.52	9.29	13.08	13.59	12.44	12.20	12.33	15.01	NA	13.52	NA	NA	NA	NA	NA	NA
Inventory Raw Materials And Supplies		43.68	25.53	27.74	51.40	41.09	33.90	20.16	28.82	16.26	30.12	47.03	40.88	28.22	22.67	22.54	22.19	22.64	20.12	30.92	25.25	26.81	23.91	38.22	40.67	39.73	27.14	30.80	21.63	25.56	25.13	26.68	31.03	27.22	31.25	24.84	34.16	34.91	25.93	43.24	50.34	29.14	36.29	37.53	38.55	58.96	37.09	25.30	33.11	NA	47.83	NA	NA	NA	NA	NA	NA
Other Assets Current		2.57	3.42	1.96	7.71	8.48	2.38	3.68	3.51	5.71	1.48	1.73	2.29	2.59	1.74	1.49	4.23	1.61	1.49	0.87	0.62	0.93	1.25	0.68	0.79	1.25	0.39	1.47	0.40	0.68	0.67	1.05	1.89	1.87	3.89	3.68	1.28	1.96	1.62	5.65	1.71	1.41	0.57	1.99	2.91	1.59	1.03	1.57	0.02	2.14	1.91	1.80	1.67	NA	1.01	NA	NA
Machinery And Equipment Gross		NA	188.79	NA	NA	NA	184.00	NA	NA	NA	180.50	NA	NA	NA	179.92	NA	NA	NA	176.77	NA	NA	NA	169.34	NA	NA	NA	167.18	NA	NA	NA	163.40	NA	NA	NA	157.29	NA	NA	NA	152.79	NA	NA	NA	142.87	NA	NA	NA	149.44	NA	NA	NA	138.35	NA	NA	NA	NA	NA	NA

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Assets Noncurrent		76.08	76.53	78.61	80.19	81.78	82.19	83.62	84.54	86.55	88.50	90.15	92.56	96.33	98.70	100.92	102.38	104.17	105.62	107.28	109.14	110.12	108.83	109.48	110.46	112.90	115.20	117.24	119.39	121.63	123.76	124.65	126.46	127.54	129.28	130.63	131.54	130.55	130.02	131.00	132.21	131.66	131.16	128.59	141.35	140.63	141.30	141.39	141.43	142.12	142.72	141.13	139.86	NA	127.50	NA	NA
Construction In Progress Gross		NA	1.81	NA	NA	NA	0.77	NA	NA	NA	1.02	NA	NA	NA	0.26	NA	NA	NA	0.65	NA	NA	NA	2.64	NA	NA	NA	0.81	NA	NA	NA	2.27	NA	NA	NA	3.59	NA	NA	NA	1.19	NA	NA	NA	4.07	NA	NA	NA	2.22	NA	NA	NA	4.59	NA	NA	NA	NA	NA	NA
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment		NA	151.12	NA	NA	NA	140.98	NA	NA	NA	131.77	NA	NA	NA	121.75	NA	NA	NA	111.99	NA	NA	NA	101.36	NA	NA	NA	90.77	NA	NA	NA	79.43	NA	NA	NA	68.76	NA	NA	NA	58.87	NA	NA	NA	50.25	NA	NA	NA	45.72	NA	NA	NA	35.40	NA	NA	NA	NA	NA	NA
Property Plant And Equipment Net		72.57	72.71	74.50	75.69	76.90	76.94	78.41	79.14	81.06	82.90	84.34	86.85	89.20	91.54	93.60	95.35	96.95	98.60	100.32	102.37	102.85	103.58	104.25	105.10	107.39	109.73	111.78	113.87	116.05	118.15	119.15	121.01	122.49	124.33	125.76	126.73	127.56	127.37	128.38	129.61	128.99	128.67	126.14	138.83	138.14	138.87	139.14	139.24	139.95	140.52	138.95	137.60	NA	125.01	NA	NA
Other Assets Noncurrent		3.51	3.82	4.11	4.50	4.88	5.25	5.21	5.40	5.50	5.60	5.80	5.71	5.72	5.75	5.92	5.62	5.81	5.61	5.55	5.36	5.86	3.81	3.75	3.85	3.95	3.88	3.84	3.86	3.88	3.88	3.73	3.64	3.21	3.08	2.96	2.86	2.98	2.65	2.63	2.60	2.67	2.49	2.45	2.52	2.49	2.44	2.25	2.19	2.17	2.20	2.18	2.22	NA	2.40	NA	NA

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Liabilities Current		144.53	41.34	32.13	44.79	53.58	56.10	48.63	60.82	41.38	35.06	48.20	60.38	43.03	32.99	23.50	48.64	213.69	82.76	39.69	35.66	41.18	39.49	52.14	53.49	58.82	35.28	42.21	35.74	37.97	144.05	41.30	33.59	44.72	48.55	32.85	46.31	52.56	52.09	50.75	44.22	45.46	40.40	54.73	47.81	53.39	36.23	41.55	34.18	39.89	35.80	32.19	28.29	NA	44.16	NA	NA
Accounts Payable Current		16.63	22.18	13.95	22.31	29.01	28.55	23.95	33.81	13.99	14.91	25.86	35.58	16.84	12.45	9.48	31.50	63.46	61.30	25.63	20.70	23.48	19.98	31.41	34.71	35.04	18.40	24.22	17.65	17.38	22.80	24.59	16.49	31.23	34.44	18.69	30.21	34.14	30.39	20.36	12.03	12.39	14.93	25.23	18.04	21.83	12.59	16.11	17.93	21.44	18.66	15.51	14.26	NA	14.63	NA	NA
Other Accrued Liabilities Current		0.28	0.84	0.44	0.15	0.43	0.40	0.59	0.51	0.55	0.18	0.20	0.35	0.35	0.25	0.38	0.30	0.24	0.11	0.30	0.23	0.18	0.26	0.48	0.42	0.39	0.10	0.38	0.35	0.25	0.34	0.28	0.26	0.32	0.25	0.69	0.75	1.99	0.13	0.39	0.36	0.72	0.24	0.82	0.48	0.13	0.05	0.02	0.87	NA	0.04	NA	NA	NA	NA	NA	NA
Dividends Payable Current		117.28	10.50	2.63	5.25	7.88	10.50	2.63	5.25	7.88	NA	2.62	5.25	7.87	10.50	2.62	5.25	139.10	10.50	2.62	5.25	7.87	10.50	2.63	5.25	7.87	10.50	2.62	5.25	7.88	110.69	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
Accrued Liabilities Current		7.11	4.76	5.07	5.80	5.21	5.48	6.11	5.42	5.16	6.08	4.82	5.22	4.57	5.08	6.89	6.98	6.60	4.41	5.23	4.01	4.13	2.74	7.85	7.05	7.47	2.47	4.07	3.85	3.87	2.63	6.54	5.45	4.41	2.98	6.87	6.68	7.76	4.70	6.46	7.60	7.17	7.80	8.58	6.51	4.51	3.59	5.44	5.71	3.54	3.23	6.12	5.17	NA	3.34	NA	NA
Contract With Customer Liability Current		3.25	3.66	3.28	3.40	3.46	3.56	6.97	7.37	NA	5.94	6.06	5.18	4.74	3.77	3.39	3.22	3.89	5.03	5.03	21.03	20.42	20.33	17.14	5.49	5.86	2.74	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

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Liabilities Noncurrent		16.04	15.86	16.70	15.45	15.60	16.87	14.13	13.76	17.03	20.35	19.93	24.63	30.34	36.43	36.46	38.27	38.55	36.64	39.45	43.52	43.70	42.59	33.22	35.43	36.92	38.69	49.65	50.10	50.47	52.18	44.25	46.00	47.49	46.24	47.24	49.69	50.52	50.39	47.33	45.62	45.26	45.46	43.24	56.90	57.65	58.67	60.41	61.19	60.34	61.21	62.17	60.03	NA	46.67	NA	NA
Deferred Income Tax Liabilities Net		0.63	NA	NA	NA	NA	NA	1.57	0.17	1.14	1.87	0.13	3.45	7.91	12.33	11.97	13.62	12.86	12.96	NA	NA	NA	18.03	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
Other Liabilities Noncurrent		3.30	3.29	3.37	2.24	1.69	1.79	1.48	1.55	1.63	1.72	1.89	2.05	2.11	2.24	2.35	2.20	2.33	2.39	2.24	5.65	5.72	4.24	1.14	1.13	1.12	1.11	3.40	3.37	3.35	3.33	3.00	0.84	1.23	1.22	1.61	3.36	4.05	4.02	2.71	2.70	2.70	2.69	0.97	0.96	0.95	0.95	0.94	0.94	0.93	0.92	0.92	0.91	NA	0.90	NA	NA
Operating Lease Liability Noncurrent		NA	0.00	NA	NA	NA	0.39	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	1.16	1.29	1.43	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

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Stockholders Equity		204.82	309.88	297.00	294.22	304.10	283.00	278.58	262.81	265.98	288.93	266.56	257.41	363.05	371.88	376.83	369.94	354.63	467.10	405.13	398.48	394.78	389.08	397.85	388.49	382.29	351.60	345.71	341.74	338.56	332.81	427.49	415.94	402.99	394.31	365.69	364.74	364.37	359.01	337.90	331.76	328.89	328.59	316.32	305.84	294.29	260.33	307.75	295.85	292.43	288.24	277.37	272.21	NA	252.32	NA	NA
Additional Paid In Capital		204.82	282.49	282.49	282.49	282.49	282.49	282.49	282.44	282.44	282.44	282.45	282.45	282.21	282.21	282.21	282.21	282.21	282.17	282.17	282.14	282.14	282.14	282.11	282.18	282.07	281.96	281.81	281.83	281.56	281.09	280.42	279.99	279.52	279.23	278.59	278.58	278.11	277.65	277.19	276.57	276.32	276.33	276.37	276.33	276.33	257.04	253.91	253.84	253.59	253.50	253.42	253.42	NA	237.12	NA	NA
Retained Earnings Accumulated Deficit		NA	27.39	14.51	11.73	21.59	0.51	-3.92	-19.70	-16.60	6.30	-16.04	-25.24	80.68	89.46	94.48	87.59	72.43	184.63	122.76	116.14	112.45	106.95	115.61	106.17	96.37	61.20	55.75	52.41	51.58	48.18	142.81	132.57	120.97	113.00	86.00	83.77	82.60	77.09	52.21	46.01	45.90	44.82	33.89	23.36	9.97	0.69	48.66	40.25	35.91	32.93	26.43	17.83	NA	14.67	NA	NA

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Net Cash Provided By Used In Operating Activities		-12.21	21.51	36.83	-4.55	-29.81	8.32	46.04	8.67	-10.58	24.26	22.18	12.00	-14.35	19.83	-7.62	80.17	4.03	10.28	10.83	16.82	-3.29	6.44	13.81	61.52	3.84	2.91	8.48	19.68	8.28	14.10	30.85	44.83	1.20	-20.30	25.06	-6.24	41.10	25.47	23.64	-28.62	31.46	5.17	27.75	36.86	-7.33	2.75	18.75	29.41	13.98	-9.68	25.32	11.83	22.97	0.33	9.70	NA
Net Cash Provided By Used In Investing Activities		-3.48	-5.36	5.03	28.80	1.87	-1.33	-1.30	2.13	-3.33	-0.90	-0.36	3.42	12.83	0.63	2.60	-6.59	3.84	-0.27	4.87	2.66	-3.04	11.81	-11.58	5.63	19.55	1.07	-3.48	-0.72	-10.05	5.24	-19.40	-16.92	-4.12	0.40	12.22	-8.50	-2.09	15.23	-14.17	17.05	-11.41	-0.51	-12.73	-7.16	-3.72	-7.60	-12.10	-2.13	-10.79	0.92	-13.15	-8.43	-30.70	-4.85	-16.42	NA
Net Cash Provided By Used In Financing Activities		-2.63	-2.63	-2.63	-2.62	-2.64	-2.63	-2.63	-2.62	-2.63	-2.62	-2.63	-111.80	-2.62	-2.51	-2.62	-133.85	-3.10	-2.62	-2.62	-2.62	-2.62	-2.63	-2.80	-2.62	-2.62	-2.59	-2.77	-2.63	-102.81	-2.43	-2.67	-2.62	-2.81	-2.60	-3.09	-3.35	-2.65	-5.25	-5.40	-5.19	-5.21	-15.65	-4.73	-4.77	14.53	-51.01	-4.09	-4.13	-4.05	-4.05	-4.13	11.77	-3.96	-7.96	-5.62	NA

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Net Cash Provided By Used In Operating Activities		-12.21	21.51	36.83	-4.55	-29.81	8.32	46.04	8.67	-10.58	24.26	22.18	12.00	-14.35	19.83	-7.62	80.17	4.03	10.28	10.83	16.82	-3.29	6.44	13.81	61.52	3.84	2.91	8.48	19.68	8.28	14.10	30.85	44.83	1.20	-20.30	25.06	-6.24	41.10	25.47	23.64	-28.62	31.46	5.17	27.75	36.86	-7.33	2.75	18.75	29.41	13.98	-9.68	25.32	11.83	22.97	0.33	9.70	NA
Net Income Loss		4.33	23.38	2.78	-9.86	21.08	14.93	15.78	-3.10	-12.40	22.34	9.20	3.48	-8.77	5.47	6.89	15.16	19.04	72.37	6.62	3.69	5.50	1.84	9.45	6.05	40.35	15.95	3.33	0.83	3.40	18.68	12.87	14.22	10.57	29.65	4.85	3.79	8.13	30.13	11.45	5.35	6.27	26.53	15.30	18.16	14.05	6.17	12.55	8.47	7.11	10.62	12.73	8.44	2.72	10.12	6.55	2.76
Increase Decrease In Accounts Receivable		-4.05	-1.09	0.93	2.65	-0.28	2.48	-13.77	19.44	-11.27	2.84	-4.86	3.43	6.51	-15.82	7.99	-98.83	17.80	89.44	-0.82	4.03	1.32	-2.65	-3.45	-40.45	40.87	0.69	2.53	-1.10	-4.51	-5.63	5.38	-29.86	8.15	26.55	0.12	3.23	-33.71	16.64	12.46	3.66	-11.25	0.45	3.54	-3.28	5.12	-2.90	6.57	-4.50	13.61	-9.79	4.48	-3.20	8.11	-8.31	-3.38	NA
Increase Decrease In Inventories		23.12	6.07	-40.45	-1.87	42.47	9.36	-14.19	-6.04	10.70	-16.77	-9.82	8.24	11.39	4.80	-13.10	0.73	3.88	-5.22	6.67	-17.11	13.93	-8.71	0.48	-12.00	15.76	0.23	6.63	-14.99	-0.22	4.14	-10.77	-11.19	4.95	30.59	-21.62	-8.45	19.09	-13.83	-8.16	24.86	0.32	-5.53	-2.93	-20.08	28.71	7.09	-5.72	24.59	-10.51	-13.72	-3.34	0.82	-3.83	-6.08	-2.01	NA
Deferred Income Tax Expense Benefit		0.63	NA	NA	NA	-0.01	-1.57	1.42	-0.95	-0.72	1.74	-3.31	-4.48	-4.40	0.34	-1.65	0.72	-0.02	-4.87	0.17	-0.03	-0.41	2.36	0.28	-1.50	-2.39	-12.35	0.46	-0.00	-1.76	3.97	-4.27	-1.15	-3.82	2.85	-0.11	-0.63	-5.83	3.26	3.60	0.26	-1.72	-0.47	-0.74	0.22	-0.98	1.78	1.54	-1.33	-0.16	-0.61	2.98	1.96	-1.48	0.54	3.14	NA
Share Based Compensation		0.02	NA	NA	NA	NA	0.00	NA	NA	NA	NA	NA	NA	NA	0.00	0.00	0.00	0.05	0.00	0.02	NA	NA	0.04	0.11	0.11	0.11	0.12	0.13	0.27	0.48	0.48	0.48	0.48	0.48	0.61	0.48	0.48	0.48	0.46	0.78	NA	NA	NA	NA	NA	NA	0.00	0.02	0.26	NA	0.00	0.00	0.50	NA	0.00	0.00	NA
Amortization Of Financing Costs		0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.03	0.02	0.02	0.02	0.02	0.02	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04	NA	0.04	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Net Cash Provided By Used In Investing Activities		-3.48	-5.36	5.03	28.80	1.87	-1.33	-1.30	2.13	-3.33	-0.90	-0.36	3.42	12.83	0.63	2.60	-6.59	3.84	-0.27	4.87	2.66	-3.04	11.81	-11.58	5.63	19.55	1.07	-3.48	-0.72	-10.05	5.24	-19.40	-16.92	-4.12	0.40	12.22	-8.50	-2.09	15.23	-14.17	17.05	-11.41	-0.51	-12.73	-7.16	-3.72	-7.60	-12.10	-2.13	-10.79	0.92	-13.15	-8.43	-30.70	-4.85	-16.42	NA
Payments To Acquire Property Plant And Equipment		2.27	1.03	1.12	1.42	2.46	1.09	1.80	0.92	0.98	0.79	0.18	0.34	0.15	0.75	0.96	1.15	1.61	0.83	1.48	2.41	2.25	1.78	1.98	0.68	0.43	0.97	0.93	0.79	0.90	1.39	0.85	1.36	0.90	1.19	1.67	1.82	2.54	1.43	0.98	3.03	2.68	5.11	7.70	3.42	2.32	2.39	2.66	1.96	2.11	4.36	3.52	7.16	8.16	3.61	2.17	NA

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Net Cash Provided By Used In Financing Activities		-2.63	-2.63	-2.63	-2.62	-2.64	-2.63	-2.63	-2.62	-2.63	-2.62	-2.63	-111.80	-2.62	-2.51	-2.62	-133.85	-3.10	-2.62	-2.62	-2.62	-2.62	-2.63	-2.80	-2.62	-2.62	-2.59	-2.77	-2.63	-102.81	-2.43	-2.67	-2.62	-2.81	-2.60	-3.09	-3.35	-2.65	-5.25	-5.40	-5.19	-5.21	-15.65	-4.73	-4.77	14.53	-51.01	-4.09	-4.13	-4.05	-4.05	-4.13	11.77	-3.96	-7.96	-5.62	NA
Payments Of Dividends		2.63	2.63	2.63	2.62	2.63	2.63	2.63	2.62	2.63	2.62	2.63	112.03	2.62	2.62	2.62	133.85	2.62	2.62	2.62	2.62	2.62	2.63	2.62	2.62	2.62	2.62	2.62	2.62	102.81	2.62	2.62	2.62	2.62	2.62	2.62	2.62	2.62	5.25	5.25	5.23	5.20	15.60	4.77	4.77	4.77	54.14	4.13	4.13	4.13	4.13	4.13	4.00	4.00	8.00	8.00	NA
Dividends		109.41	NA	NA	NA	NA	NA	NA	NA	10.50	NA	NA	109.41	NA	NA	NA	NA	131.23	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	NA

		2024-03-31	2023-12-31	2023-09-30	2023-06-30	2023-03-31	2022-12-31	2022-09-30	2022-06-30	2022-03-31	2021-12-31	2021-09-30	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Revenues		58.28	92.01	116.75	85.31	74.18	117.82	118.14	117.80	42.26	107.07	98.68	74.12	41.52	49.86	54.14	47.42	53.08	20.18	65.68	70.86	48.50	65.51	81.42	88.34	55.75	75.26	77.61	68.05	54.11	69.37	69.31	65.84	43.20	33.87	79.38	78.69	49.81	88.47	93.42	66.93	80.30	125.57	118.76	104.03	90.77	74.59	81.98	97.61	84.84	89.61	90.10	73.96	52.22	53.52	66.09	51.71
Revenue From Contract With Customer Excluding Assessed Tax		58.28	92.01	116.75	85.31	74.18	117.82	118.14	117.80	42.26	107.07	98.68	74.12	41.52	49.86	54.14	47.42	53.08	20.18	65.68	70.86	48.50	65.51	81.42	88.34	55.75	75.26	77.61	68.05	54.11	69.37	69.31	65.84	43.20	33.87	79.38	78.69	49.81	88.47	93.42	66.93	80.30	125.57	118.76	104.03	90.77	74.59	81.98	97.61	84.84	89.61	90.10	73.96	52.22	53.52	66.09	51.71
Operating, Custom Chemicals, Chemicals		15.43	17.64	14.45	15.58	16.62	14.71	16.05	12.27	15.71	15.02	12.72	12.26	10.68	11.77	10.33	18.04	23.76	20.03	25.27	21.96	23.70	23.28	23.97	27.07	23.42	22.72	23.59	19.64	21.95	22.52	20.45	19.40	20.29	23.54	26.66	28.16	29.80	33.75	40.63	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Operating, Performance Chemicals, Chemicals		2.63	3.21	3.39	3.18	5.26	4.92	5.46	5.93	5.85	4.17	3.97	3.29	5.43	4.14	2.41	4.80	3.93	2.94	3.38	3.89	3.65	5.22	4.05	4.46	5.66	4.79	4.57	3.71	4.41	4.46	3.84	5.16	4.78	3.81	4.94	4.53	4.41	4.57	4.31	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Operating, Biofuels		40.22	71.16	98.91	66.55	52.30	98.18	96.64	99.60	20.70	87.88	81.99	58.57	25.41	33.95	41.40	24.58	25.39	-2.79	37.04	45.01	21.15	37.02	53.40	56.81	26.67	47.75	49.44	44.70	27.75	42.40	45.01	43.32	21.57	6.53	75.45	71.91	19.88	50.15	58.20	35.43	51.92	89.92	77.43	64.04	52.03	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Operating, Chemicals		18.06	20.85	17.85	18.76	21.88	19.63	21.51	18.19	21.56	67.49	16.69	15.55	16.11	15.91	12.74	22.84	27.69	22.97	28.65	25.86	27.35	28.50	28.02	31.53	29.08	27.51	28.17	23.35	26.36	26.98	24.30	24.56	25.07	27.35	31.61	32.69	34.21	38.32	44.94	32.61	30.28	35.65	43.69	42.03	40.14	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Long Term Contract With Customer		48.99	NA	108.41	75.69	63.66	NA	108.32	111.59	32.06	NA	92.39	68.29	36.35	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	NA	NA	NA	NA	NA
Short Term Contract With Customer		9.24	NA	8.29	9.56	10.46	NA	9.76	6.15	10.14	NA	6.23	5.77	5.11	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	NA	NA	NA	NA	NA
Nonrelated Parties		58.28	NA	NA	NA	74.16	117.73	118.11	117.64	42.07	106.66	98.49	73.81	41.16	49.54	53.31	47.31	52.37	19.22	65.33	70.08	47.42	63.77	80.59	87.65	54.94	74.42	77.11	67.97	53.65	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
Bill And Hold Revenue		11.64	12.26	10.15	10.77	10.59	9.85	9.71	7.97	9.28	10.08	9.19	7.88	7.55	7.89	7.40	7.33	10.15	13.52	14.42	12.01	11.76	12.45	11.58	13.37	7.52	5.04	4.52	3.46	4.50	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
Non Bill And Hold Revenue		46.64	79.75	106.60	74.54	63.59	107.97	108.43	109.83	32.98	96.99	89.50	66.24	33.97	41.97	46.74	40.09	42.93	6.66	51.27	58.86	36.74	53.06	69.85	74.96	48.23	70.22	73.09	64.59	49.61	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