CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net income (loss)	$ (140,295)	$ 26,473
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	97,959	98,383
Amortization	25,605	26,554
Deferred income tax (benefit) expense	(12,056)	(8,911)
Equity (income) loss of unconsolidated entities, net	373	488
Dividends from unconsolidated entities	526	0
(Gain) loss on early extinguishment of debt	(2,254)	2,668
Goodwill impairment charge	104,580	0
Other, net	381	(1,147)
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:
Accounts receivable	74,994	(32,563)
Income tax refunds receivable, reimbursable to seller	7,687	735
Inventories	(11,339)	3,557
Contract assets	9,589	(52,205)
Right-of-use assets	21,829	21,050
Accounts payable	13,030	12,111
Accrued interest payable	(7,559)	(7,840)
Accrued compensation	(5,559)	12,098
Advances on contracts	(5,987)	(13,997)
Operating lease liabilities	(21,498)	(20,554)
Retirement plan liabilities, net	(27,829)	(36,700)
Other assets and liabilities	8,984	16,550
Net cash provided by operating activities	131,161	46,750
Cash flows from investing activities:
Purchases of property, plant and equipment	(101,645)	(109,507)
Proceeds from sales of assets	8,289	15,512
Expenditures for intangible assets	(147)	(287)
Proceeds from notes receivable	8,605	6,400
Net proceeds (payments) from settlement of foreign currency forward exchange contracts	13,571	(1,064)
Payments for settlements of interest rate swaps	(2,586)	0
Other investing activities, net	220	181
Net cash used by investing activities	(73,693)	(88,765)
Cash flows from financing activities:
Short-term borrowings, net	277	4,650
Current maturities and long-term debt:
Additions	159,429	507,468
Reductions	(198,831)	(452,351)
Dividends paid to noncontrolling interests	(4,841)	(3,103)
Noncontrolling Interest - purchase or sale	1,901	0
Stock-based compensation - Employee taxes paid	(1,817)	(3,273)
Payment of contingent consideration	(6,915)	(734)
Deferred financing costs	0	(7,828)
Other financing activities, net	0	(601)
Net cash (used) provided by financing activities	(50,797)	44,228
Effect of exchange rate changes on cash and cash equivalents, including restricted cash	(8,762)	(1,779)
Net increase in cash and cash equivalents, including restricted cash	(2,091)	434
Cash and cash equivalents, including restricted cash, at beginning of period	87,128	79,669
Cash and cash equivalents, including restricted cash, at end of period	85,037	80,103
Supplementary cash flow information:
Change in accrual for purchases of property, plant and equipment included in accounts payable	$ 7,419	$ 2,357