Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ 4,203	$ (1,900)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Loss on change in fair value of contingent consideration	269	0
(Gain) loss on sale of business	377	(1,064)
Depreciation and amortization	2,959	4,254
Deferred income taxes	(273)	(200)
Non-cash compensation expense	3,287	2,792
Changes in other operating items:
Accounts and other receivables	13,542	29,264
Unbilled revenue	(10,399)	15,887
Prepaid expenses and other assets	(2,741)	(4,206)
Accounts payable, accrued expenses and net change in operating leases	(15,436)	(12,105)
Deferred revenue	(909)	142
Other	1,750	(99)
Net cash provided by (used in) operating activities	(3,371)	32,765
Cash flows from investing activities:
Additions to property, plant and equipment	(1,009)	(1,046)
Proceeds from sale of business	419	3,328
Capitalized software development costs and other	0	(45)
Net cash provided by (used in) investing activities	(590)	2,237
Cash flows from financing activities:
Proceeds from long-term debt	93,650	81,165
Repayment of long-term debt	(97,401)	(106,385)
Change in negative cash book balance	(4)	(2,984)
Tax withholding payments for employee stock-based compensation in exchange for shares surrendered	(790)	(114)
Repurchases of common stock in the open market	0	(1,826)
Other financing activities	0	(298)
Net cash used in financing activities	(4,545)	(30,442)
Effect of exchange rate changes on cash and cash equivalents	890	(622)
Net increase (decrease) in cash	(7,616)	3,938
Cash at beginning of period	23,076	8,159
Cash at end of period	15,460	12,097
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	348	1,502
Cash paid during the period for income taxes	$ 2,852	$ 879