CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Cash and cash equivalents	$ 21,710	$ 23,400
Current restricted cash	77,140	94,167
Accounts receivable – trade, net of allowance for credit losses of $1.4 million and $1.4 million as of June 30, 2025 and December 31, 2024, respectively	97,699	94,509
Contracts in progress	70,849	79,392
Inventories, net	65,704	64,802
Other current assets	24,461	23,576
Current assets held for sale	169,338	172,668
Total current assets	526,901	552,514
Net property, plant and equipment and finance leases	63,555	60,921
Goodwill	53,440	51,411
Intangible assets, net	17,867	18,699
Right-of-use assets	16,064	16,902
Long-term restricted cash	10,238	10,042
Deferred tax assets	89	0
Other assets	15,336	16,498
Total assets	703,490	726,987
Accounts payable	96,887	92,068
Accrued employee benefits	4,973	3,830
Advance billings on contracts	59,147	57,814
Accrued warranty expense	2,599	2,748
Financing lease liabilities	1,778	1,644
Operating lease liabilities	3,034	3,204
Other accrued liabilities	34,565	28,729
Current borrowings	127,165	125,137
Current liabilities held for sale	90,564	91,477
Total current liabilities	529,293	406,651
Borrowings, net of current portion	8,504	8,556
Pension and other postretirement benefit liabilities	185,887	192,665
Finance lease liabilities, net of current portion	27,671	28,501
Operating lease liabilities, net of current portion	13,022	13,801
Deferred tax liability	11,250	9,800
Other noncurrent liabilities	9,475	9,958
Total liabilities	1,012,176	1,010,159
Stockholders' deficit:
Preferred stock, par value $0.01 per share, authorized shares of 20,000; issued and outstanding shares 7,669 at June 30, 2025 and December 31, 2024	77	77
Common stock, par value $0.01 per share, authorized shares of 500,000; outstanding shares of 99,189 and 95,138 at June 30, 2025 and December 31, 2024, respectively	5,248	5,208
Capital in excess of par value	1,565,762	1,558,828
Treasury stock at cost, 2,379 and 2,379 shares at June 30, 2025 and December 31, 2024, respectively	(115,500)	(115,500)
Accumulated deficit	(1,733,645)	(1,645,716)
Accumulated other comprehensive loss	(31,168)	(86,660)
Stockholders' deficit attributable to shareholders	(309,226)	(283,763)
Non-controlling interest from discontinued operations	540	591
Total stockholders' deficit	(308,686)	(283,172)
Total liabilities and stockholders' deficit	703,490	726,987
8.75% Senior Notes due 2030
Senior notes due 2030	124,860	0
Senior Notes Excluding Due 2030
Current senior notes	108,581	0
Senior notes, net of current portion	$ 102,214	$ 340,227