CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities:
Net income (loss)	$ (12,195)	$ (16,846)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	36,442	36,920
Amortization	7,403	8,174
Deferred income tax (benefit) expense	2,776	3,445
Equity (income) loss of unconsolidated entities, net	(28)	249
Right-of-use assets	7,416	8,599
Remeasurement of long-lived assets	0	10,695
Stock-based compensation	4,044	3,860
Other, net	(637)	(3,088)
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:
Accounts receivable	(13,501)	24,426
Inventories	(8,995)	(5,297)
Contract assets	6,456	(9,199)
Accounts payable	9,138	(13,751)
Accrued interest payable	(6,931)	(6,820)
Accrued compensation	(15,105)	(25,531)
Advances on contracts and other customer advances	(14,770)	(1,618)
Operating lease liabilities	(7,435)	(8,212)
Retirement plan liabilities, net	4,488	(340)
Other assets and liabilities	8,034	(4,318)
Net cash (used) provided by operating activities	6,600	1,348
Cash flows from investing activities:
Purchases of property, plant and equipment	(21,624)	(26,881)
Proceeds from sales of assets	1,447	4,313
Expenditures for intangible assets	(7)	(77)
Net proceeds (payments) from settlement of foreign currency forward exchange contracts	1,737	(601)
Net cash used by investing activities	(18,447)	(23,246)
Cash flows from financing activities:
Short-term borrowings, net	2,812	(9,003)
Borrowings and repayments under Revolving Credit Facility, net	30,000	35,000
Repayments of Term Loan	(1,250)	(1,250)
Cash paid for finance leases and other long-term debt	(4,158)	(3,394)
Dividends paid to noncontrolling interests	0	(8,243)
Contributions from noncontrolling interests	0	874
Stock-based compensation - Employee taxes paid	(1,277)	(1,041)
Net cash (used) provided by financing activities	26,127	12,943
Effect of exchange rate changes on cash and cash equivalents, including restricted cash	(9)	(8,251)
Net increase (decrease) in cash and cash equivalents, including restricted cash	14,271	(17,206)
Cash and cash equivalents, including restricted cash, at beginning of period	90,158	124,614
Cash and cash equivalents, including restricted cash, at end of period	$ 104,429	$ 107,408