Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Operating Activities
Net loss	$ (42,758)	$ (450,910)	$ (29,433)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	49,635	93,334	138,168
Impairment of long-lived assets	2,308	252,382	66,121
Amortization of acquired contract liability	(5,871)	(38,564)	(75,286)
Loss on sale of assets and businesses	9,294	104,702	56,916
Curtailments, settlements, and special termination benefits loss, net	52,005		14,293
Other amortization included in interest expense	9,047	23,759	11,157
Provision for credit losses	452	4,853	1,554
Provision (benefit) for deferred income taxes	25	(176)	2,823
Share-based compensation	9,782	12,701	11,062
Changes in other assets and liabilities, excluding the effects of acquisitions and divestitures:
Trade and other receivables	2,822	126,294	5,001
Contract assets	702	46,841	50,440
Inventories	25,642	35,412	(48,802)
Prepaid expenses and other current assets	(1,122)	(310)	16,376
Accounts payable, accrued expenses, and contract liabilities	(189,412)	(330,992)	(61,338)
Accrued pension and other postretirement benefits	(58,597)	(51,692)	(66,519)
Other, net	(970)	(753)	4,133
Net cash used in operating activities	(137,016)	(173,119)	96,666
Investing Activities
Capital expenditures	(19,660)	(25,178)	(39,834)
Proceeds from sale of assets and businesses	224,518	15,888	47,229
Investment in joint venture	(2,101)
Purchase of facility related to divested businesses	(21,550)
Net cash provided by (used in) investing activities	181,207	(9,290)	7,395
Financing Activities
Net decrease in revolving credit facility		(400,000)	185,000
Proceeds from issuance of long-term debt	107	713,900	585,580
Retirement of debt and finance lease obligations	(380,009)	(160,035)	(449,650)
Payment of deferred financing costs	(400)	(20,716)	(17,718)
Sales of common stock, net of issuance costs		145,383
Premium on redemption of First Lien Notes	(9,108)
Dividends paid			(8,078)
Repurchase of shares for share-based compensation minimum tax obligation	(3,249)	(1,285)	(1,442)
Net cash (used in) provided by financing activities	(392,659)	277,247	293,692
Effect of exchange rate changes on cash	(536)	9,581	(5,097)
Net change in cash and cash equivalents	(349,004)	104,419	392,656
Cash and cash equivalents at beginning of period	589,882	485,463	92,807
Cash and cash equivalents at end of period	$ 240,878	$ 589,882	$ 485,463