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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net loss	$ (45,091)	$ (88,435)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	13,177	15,285
Deferred income taxes	(3,019)	(15,799)
(Income) loss from discontinued operations	(348)	454
Restructuring charges	2,826	851
Impairment charges		88,380
Gains on dispositions of property and other assets	(9,250)	(85)
Share-based compensation expense (benefit)	1,763	(2,145)
Other non-cash items, net	(171)	9,342
Change in operating assets and liabilities:
Receivables	(1,284)	15,651
Inventories	351	(711)
Current contract costs	(828)	8,970
Accounts payable	(8,440)	(1,109)
Restructuring liabilities	(2,250)	(1,293)
Accrued compensation	1,364	(20,551)
Contract liabilities	8,148	(12,602)
Income taxes payable	(19)	17,753
Other assets and liabilities, net	10,352	(18,675)
Net cash used in operating activities	(32,719)	(4,719)
Cash flows from investing activities
Capital expenditures	(9,371)	(23,246)
Cash paid for acquisitions, net	(7,415)
Proceeds from dispositions of property and other assets	14,106	85
Net cash used in investing activities	(2,680)	(23,161)
Cash flows from financing activities
Proceeds from borrowings	40,860	160,755
Payments on debt and finance lease obligations	(8,310)	(56,077)
Dividends paid on common stock		(2,038)
Distributions to noncontrolling interest, net of contributions from noncontrolling interest	(809)	(1,526)
Payment of payroll taxes on stock-based compensation through shares withheld or repurchased	(519)	(1,059)
Common stock purchased for treasury		(2,785)
Proceeds from exercise of stock options		2,077
Net cash provided by financing activities	31,222	99,347
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	151	(2,938)
Net change in cash, cash equivalents, and restricted cash	(4,026)	68,529
Cash, cash equivalents, and restricted cash, beginning of year	41,971	62,004
Cash, cash equivalents, and restricted cash, end of period	$ 37,945	$ 130,533

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