CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net income (loss)	$ (27,966)	$ (24,428)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	73,946	67,496
Amortization	16,180	16,032
Deferred income tax (benefit) expense	5,771	7,622
Equity (income) loss of unconsolidated entities, net	122	442
Remeasurement of long-lived assets	10,695	0
Other, net	968	4,146
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:
Accounts receivable	17,633	(56,383)
Inventories	(3,985)	(7,952)
Contract assets	(12,887)	(3,535)
Right-of-use assets	16,194	16,211
Accounts payable	(5,786)	12,960
Accrued interest payable	(15)	(192)
Accrued compensation	(22,544)	9,194
Advances on contracts	(7,121)	(12,978)
Operating lease liabilities	(15,876)	(14,790)
Retirement plan liabilities, net	(938)	(5,468)
Other assets and liabilities	(4,007)	5,714
Net cash (used) provided by operating activities	40,384	28,190
Cash flows from investing activities:
Purchases of property, plant and equipment	(60,520)	(66,341)
Proceeds from sale of business, net	16,588	0
Proceeds from sales of assets	7,584	1,439
Expenditures for intangible assets	(484)	(427)
Proceeds from notes receivable	17,023	11,238
Net proceeds (payments) from settlement of foreign currency forward exchange contracts	584	(2,408)
Other investing activities, net	0	84
Net cash used by investing activities	(19,225)	(56,415)
Cash flows from financing activities:
Short-term borrowings, net	(3,138)	601
Current maturities and long-term debt:
Additions	42,007	123,996
Reductions	(54,310)	(90,727)
Dividends paid to noncontrolling interests	(12,551)	0
Contributions from noncontrolling interests	874	1,654
Stock-based compensation - Employee taxes paid	(1,332)	(1,238)
Net cash (used) provided by financing activities	(28,450)	34,286
Effect of exchange rate changes on cash and cash equivalents, including restricted cash	(9,817)	(1,789)
Net increase (decrease) in cash and cash equivalents, including restricted cash	(17,108)	4,272
Cash and cash equivalents, including restricted cash, at beginning of period	124,614	85,094
Cash and cash equivalents, including restricted cash, at end of period	107,506	89,366
Supplementary cash flow information:
Change in accrual for purchases of property, plant and equipment included in accounts payable	1,048	(3,170)
Impairment of Long-Lived Assets to be Disposed of	$ 0	$ 14,099