CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net loss	$ (21,390)	$ (30,343)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	12,475	13,279
Deferred income taxes	(2,304)	(3,104)
(Income) loss from discontinued operations	58	(275)
Restructuring charges	453	654
Impairment charges	0	583
Gains on dispositions of property and other assets	(58)	(74)
Share-based compensation expense	3,065	2,166
Other non-cash items, net	1,331	2,836
Change in operating assets and liabilities:
Receivables	(10,726)	(2,833)
Inventories	(868)	(919)
Current contract costs	(6,995)	(9,408)
Accounts payable	20,621	7,426
Restructuring liabilities	(513)	(534)
Accrued compensation	(6,485)	3,363
Contract liabilities	16,957	21,706
Income taxes payable	(5,735)	(476)
Other assets and liabilities, net	10,183	13,876
Net cash provided by operating activities	10,069	17,923
Cash flows from investing activities
Capital expenditures	(11,384)	(12,570)
Cash paid for acquisitions, net	(41)	0
Proceeds from dispositions of property and other assets	66	76
Net cash used in investing activities	(11,359)	(12,494)
Cash flows from financing activities
Proceeds from borrowings	1,819	1,013
Payments on debt and finance lease obligations	(5,749)	(4,849)
Dividends paid on preferred stock	(1,950)	(1,950)
Payments of debt issuance costs	(200)	(313)
Payment of payroll taxes on stock-based compensation through shares withheld or repurchased	(412)	(518)
Net cash provided by financing activities	(6,492)	(6,617)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	404	(178)
Net change in cash, cash equivalents, and restricted cash	(7,378)	(1,366)
Cash, cash equivalents, and restricted cash, beginning of year	64,564	64,303
Cash, cash equivalents, and restricted cash, end of period	$ 57,186	$ 62,937