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)	$ 35,605	$ (68,283)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	39,442	39,986
Deferred income taxes	346	(131)
Income from discontinued operations	(285)	(534)
Restructuring charges	3,467	5,799
Impairment charges	583	0
Gains on dispositions of property and other assets	(209)	(9,345)
Share-based compensation expense	7,998	5,960
Multi-employer pension plan withdrawal	0	57
Other non-cash items, net	6,933	4,642
Change in operating assets and liabilities:
Receivables	(62,503)	(53,998)
Inventories	(3,125)	(68)
Current contract costs	(15,333)	(10,123)
Accounts payable	34,939	39,204
Restructuring liabilities	(2,442)	(4,413)
Accrued compensation	11,093	7,611
Contract liabilities	24,174	26,386
Income taxes payable	8,538	(181)
Other assets and liabilities, net	16,264	14,718
Net cash provided by (used in) financing activities	105,485	(2,713)
Cash flows from investing activities
Capital expenditures	(54,770)	(45,187)
Cash paid for acquisitions, net	(25,494)	(7,704)
Proceeds from dispositions of property and other assets	237	14,292
Net cash used in investing activities	(80,027)	(38,599)
Cash flows from financing activities
Proceeds from borrowings	94,849	451,350
Payments on debt and finance lease obligations	(86,643)	(335,665)
Dividends paid on preferred stock	(5,850)	(1,950)
Distributions to noncontrolling interest, net of contributions from noncontrolling interest	(570)	(798)
Payments of debt issuance costs	(418)	(1,767)
Payment of payroll taxes on stock-based compensation through shares withheld or repurchased	(940)	(1,119)
Net cash provided by financing activities	428	110,051
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(5,989)	2,551
Net change in cash, cash equivalents, and restricted cash	19,897	71,290
Cash, cash equivalents, and restricted cash, beginning of year	64,303	41,971
Cash, cash equivalents, and restricted cash, end of period	$ 84,200	$ 113,261