Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 30,924	$ 30,755
Accounts receivable, net of allowance for doubtful accounts of $2,622 and $1,231, respectively	182,874	188,819
Unbilled revenue	32,723	30,758
Inventories	31,638	33,327
Prepaid expenses	18,772	14,353
Other current assets	24,769	31,825
Total current assets	321,700	329,837
Property and equipment, net	32,656	32,681
Intangibles and other assets:
Goodwill	202,700	206,257
Intangible assets, net	31,538	37,715
Deferred income taxes	1,031	586
Other non-current assets	1,374	1,391
Total other assets	236,643	245,949
Total assets	590,999	608,467
Current liabilities:
Accounts payable	121,289	170,244
Current portion of contingent consideration	19,283	11,387
Due to seller	0	402
Other current liabilities	35,049	31,363
Accrued expenses	30,067	17,866
Total current liabilities	205,688	231,262
Revolving credit facility	107,468	99,258
Deferred income taxes	11,291	10,526
Contingent consideration, net of current portion	0	10,775
Other long-term liabilities	1,926	2,510
Total liabilities	326,373	354,331
Commitments and Contingencies
Stockholders' equity:
Common stock, par value $0.0001 per share, 200,000 and 200,000 shares authorized, 63,391 and 62,645 shares issued, 54,088 and 53,098 shares outstanding, respectively	6	6
Additional paid-in capital	224,480	213,566
Treasury stock at cost, 9,303 and 9,547 shares, respectively	(49,458)	(52,207)
Accumulated other comprehensive loss	(20,799)	(13,993)
Retained earnings	110,397	106,764
Total stockholders' equity	264,626	254,136
Total liabilities and stockholders' equity	$ 590,999	$ 608,467