CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net income (loss)	$ (58,744)	$ (27,966)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	74,343	73,946
Amortization	14,964	16,180
Deferred income tax (benefit) expense	(2,387)	5,771
Equity in (income) loss of unconsolidated entities, net	(72)	122
Right-of-use assets	15,127	16,194
Property, plant and equipment impairment charge	7,386	0
Intangible asset impairment charge	0	2,840
Remeasurement of long-lived assets	0	10,695
Gain on sale of business	0	(1,877)
Stock-based compensation	9,760	8,262
Other, net	(3,149)	(8,257)
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:
Accounts receivable	(14,314)	17,633
Inventories	(8,300)	(3,985)
Contract assets	12,413	(12,887)
Accounts payable	10,716	(5,786)
Accrued interest payable	539	(15)
Accrued compensation	(11,433)	(22,544)
Advances on contracts and other customer advances	(18,324)	(7,121)
Operating lease liabilities	(15,078)	(15,876)
Retirement plan liabilities, net	9,381	(938)
Other assets and liabilities	5,745	(4,007)
Net cash (used) provided by operating activities	28,573	40,384
Cash flows from investing activities:
Purchases of property, plant and equipment	(60,659)	(60,520)
Proceeds from sale of business, net	0	16,588
Proceeds from sales of assets	3,764	7,584
Expenditures for intangible assets	(51)	(484)
Proceeds from notes receivable	0	17,023
Net proceeds (payments) from settlement of foreign currency forward exchange contracts	(4,296)	584
Net cash used by investing activities	(61,242)	(19,225)
Cash flows from financing activities:
Short-term borrowings, net	5,831	(3,138)
Borrowings and repayments under Revolving Credit Facility, net	62,000	(3,000)
Repayments of Term Loan	(2,500)	(2,500)
Cash paid for finance leases and other long-term debt	(9,669)	(6,803)
Dividends paid to noncontrolling interests	0	(12,551)
Contributions from noncontrolling interests	0	874
Stock-based compensation - Employee taxes paid	(1,534)	(1,332)
Net cash (used) provided by financing activities	54,128	(28,450)
Effect of exchange rate changes on cash and cash equivalents, including restricted cash	1,918	(9,817)
Net increase (decrease) in cash and cash equivalents, including restricted cash	23,377	(17,108)
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	$ 113,535	$ 107,506