Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets
Cash	$ 9,025	$ 8,159
Accounts and other receivables, less allowance for credit losses of $1,500 in 2020 and $1,132 in 2019	104,195	131,852
Unbilled revenue	60,655	57,229
Prepaid expenses and other current assets	21,306	19,115
Total current assets	195,181	216,355
Property, plant and equipment	23,297	23,746
Accumulated depreciation	(17,789)	(17,943)
Property, plant and equipment, net	5,508	5,803
Operating lease right-of-use assets	25,036	27,251
Goodwill	164,812	171,563
Intangible assets, net	14,583	16,344
Other assets	11,474	11,586
Total assets	416,594	448,902
Liabilities and Stockholders’ Equity
Accounts payable and accrued expenses	75,328	92,332
Deferred revenue	25,560	23,234
Current portion of operating lease liabilities	7,739	7,871
Total current liabilities	108,627	123,437
Long-term debt	74,837	82,870
Long-term portion of operating lease liabilities	20,776	22,159
Other noncurrent liabilities	9,862	10,522
Total liabilities	214,102	238,988
Stockholders’ equity:
Common stock, par value $0.01 per share	172	172
Additional paid-in capital	100,650	102,319
Retained earnings	129,934	131,228
Treasury stock at cost	(1,374)	(4,070)
Accumulated other comprehensive loss	(26,890)	(19,735)
Total stockholders’ equity	202,492	209,914
Total Liabilities and Stockholders' Equity	416,594	448,902
Allowance for Doubtful Accounts Receivable, Current	$ 1,500	$ 1,132