Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Revenues	$ 704,666	$ 807,895	$ 2,207,007	$ 2,495,903
Operating costs and expenses:
Cost of sales (exclusive of depreciation and amortization shown separately below)	546,282	713,274	1,750,751	2,207,962
Selling, General and Administrative Expense	65,974	71,823	194,512	223,031
Depreciation and amortization	29,843	37,404	104,112	114,349
Restructuring Charges	4,744	2,327	13,490	18,206
Litigation Judgment Gain, net of expenses	(3,857)	0	(9,257)	0
(Gain) Loss on Disposition of Business	60,019	0	55,190	17,837
Operating Expenses	703,005	824,828	2,108,798	2,581,385
Operating Income (Loss)	1,661	(16,933)	98,209	(85,482)
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component	(13,989)	(16,520)	(57,280)	(49,581)
Interest expense and other	33,178	29,309	96,069	83,515
Income (loss) from continuing operations before income taxes	(17,528)	(29,722)	59,420	(119,416)
Income tax expense (benefit)	(3,682)	1,223	12,477	2,739
Net Income (Loss) Attributable to Parent	$ (13,846)	$ (30,945)	$ 46,943	$ (122,155)
Earnings per share-basic:
Earnings Per Share, Basic	$ (0.27)	$ (0.62)	$ 0.94	$ (2.46)
Weighted-average common shares outstanding-basic (in shares)	50,395	49,668	50,074	49,616
Earnings per share-diluted:
Earnings Per Share, Diluted	$ (0.27)	$ (0.62)	$ 0.93	$ (2.46)
Weighted-average common shares outstanding-diluted (in shares)	50,395	49,668	50,591	49,616
Dividends declared and paid per common share (in dollars per share)	$ 0.04	$ 0.04	$ 0.12	$ 0.12