Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ (1,900)	$ 3,553
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Gain on change in fair value of contingent consideration, net	0	(677)
Gain on sale of business	(1,064)	0
Depreciation and amortization	4,254	4,657
Deferred income taxes	(200)	(556)
Non-cash compensation expense	2,792	2,419
Changes in other operating items:
Accounts and other receivables	29,264	(10,528)
Unbilled revenue	15,887	8,266
Prepaid expenses and other current assets	(4,206)	(2,449)
Accounts payable, accrued expenses and net change in operating leases	(12,105)	(11,772)
Deferred revenue	142	141
Other	(99)	643
Net cash provided by (used in) operating activities	32,765	(6,303)
Cash flows from investing activities:
Additions to property, plant and equipment	(1,046)	(1,027)
Proceeds from sale of business	3,328	0
Capitalized software development costs and other	(45)	(227)
Net cash provided by (used in) investing activities	2,237	(1,254)
Cash flows from financing activities:
Proceeds from long-term debt	81,165	77,050
Repayment of long-term debt	(106,385)	(73,900)
Change in negative cash book balance	(2,984)	(1,584)
Repurchases of common stock in the open market	1,826	0
Other financing activities	(412)	(402)
Net cash provided by (used in) financing activities	(30,442)	1,164
Effect of exchange rate changes on cash and cash equivalents	(622)	(913)
Net increase (decrease) in cash	3,938	(7,306)
Cash at beginning of period	8,159	13,417
Cash at end of period	12,097	6,111
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	1,502	3,197
Cash paid (refunded) during the period for income taxes	$ 879	$ (498)