CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 115,283	$ 173,420
Accounts receivable, net	246,688	287,781
Contract assets, net	166,557	182,281
Inventories	145,845	169,567
Income taxes prepaid and receivable	19,187	11,043
Prepaid expenses and other current assets	37,132	53,872
Total current assets	730,692	877,964
Property, plant and equipment, net	563,431	601,989
Intangibles, net	38,127	44,646
Goodwill	176,261	180,181
Deferred income taxes	28,757	22,941
Noncurrent receivables, net	0	4,392
Other assets	111,428	102,901
Total assets	1,648,696	1,835,014
Current liabilities:
Accounts payable	66,095	87,104
Accrued liabilities	141,904	142,988
Current maturities of long-term debt	0	4,218
Income taxes payable	18,367	14,369
Total current liabilities	226,366	248,679
Long-term debt	318,531	452,667
Other noncurrent liabilities	138,830	139,385
Deferred taxes and other liabilities	16,022	26,963
Total liabilities	699,749	867,694
Commitments and Contingencies (Note 21)
Shareholders’ Equity:
Preferred stock, par value $5.00 per share; authorized 2,000,000 shares; none issued	0	0
Additional paid-in capital	452,933	448,218
Retained earnings	1,065,763	1,010,942
Accumulated items of other comprehensive income:
Translation adjustments	(181,555)	(124,901)
Pension and postretirement liability adjustments	(14,328)	(17,346)
Derivative valuation adjustment	(106)	9,079
Treasury stock (Class A), at cost; 9,844,746 shares in 2024 and 9,661,845 in 2023	(379,210)	(364,665)
Total Company shareholders’ equity	943,538	961,368
Noncontrolling interest	5,409	5,952
Total shareholders' equity	948,947	967,320
Total liabilities and shareholders’ equity	1,648,696	1,835,014
Common Class A
Shareholders’ Equity:
Class A Common Stock, par value $0.001 per share; authorized 100,000,000 shares; issued 40,917,539 in 2024 and 40,856,910 in 2023	$ 41	$ 41