Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021
Current assets:
Cash and cash equivalents	$ 237,486	$ 589,882
Trade and other receivables, less allowance for credit losses of $8,016 and $8,095	190,185	194,066
Contract assets	144,118	134,638
Inventory, net	412,663	400,366
Prepaid expenses and other current assets	22,788	19,206
Assets held for sale		216,276
Total current assets	1,007,240	1,554,434
Property and equipment, net	204,907	211,369
Goodwill	522,392	521,638
Intangible assets, net	99,445	102,453
Other, net	49,509	61,041
Total assets	1,883,493	2,450,935
Current liabilities:
Current portion of long-term debt	4,653	5,247
Accounts payable	164,753	179,473
Contract liabilities	158,252	204,379
Accrued expenses	235,043	271,160
Liabilities related to assets held for sale		58,108
Total current liabilities	562,701	718,367
Long-term debt, less current portion	1,606,287	1,952,296
Accrued pension and other postretirement benefits	365,832	384,256
Deferred income taxes	7,456	7,491
Other noncurrent liabilities	167,443	207,378
Stockholders' deficit:
Common stock, $.001 par value, 100,000,000 shares authorized, 64,488,674 and 64,488,674 shares issued; 64,433,820 and 64,185,001 shares outstanding	64	64
Capital in excess of par value	966,532	978,272
Treasury stock, at cost, 54,854 and 303,673 shares	(560)	(12,606)
Accumulated other comprehensive loss	(507,520)	(530,192)
Accumulated deficit	(1,284,742)	(1,254,391)
Total stockholders' deficit	(826,226)	(818,853)
Total liabilities and stockholders' deficit	$ 1,883,493	$ 2,450,935