Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues
Revenues	$ 141,869	$ 121,798	$ 275,684	$ 242,739
Cost of revenues (exclusive of depreciation and amortization, shown separately below)
Total cost of revenues	89,515	79,595	175,586	158,821
Selling, general and administrative	33,161	27,884	65,684	56,624
Depreciation	1,070	1,028	2,086	2,062
Amortization	4,010	4,137	8,147	8,020
Acquisition costs	616	542	578	840
Adjustment to fair value of contingent consideration	116	121	(308)	1,091
Income from operations	13,381	8,491	23,911	15,281
Net interest expense	1,863	513	3,656	887
Net other (income) expense	(9)	52	(44)	49
Income before income taxes	11,527	7,926	20,299	14,345
Provision for income taxes	2,999	2,077	4,745	3,567
Net income	$ 8,528	$ 5,849	$ 15,554	$ 10,778
Basic net income per share (in dollars per share)	$ 0.27	$ 0.18	$ 0.50	$ 0.33
Diluted net income per share (in dollars per share)	$ 0.27	$ 0.17	$ 0.48	$ 0.32
Shares used in computing basic net income per share (in shares)	31,343	32,772	31,359	32,762
Shares used in computing diluted net income per share (in shares)	32,040	33,889	32,166	33,894
Services
Revenues
Revenues	$ 141,234	$ 120,912	$ 274,100	$ 241,107
Cost of revenues (exclusive of depreciation and amortization, shown separately below)
Total cost of revenues	89,515	79,595	175,586	158,821
Software and hardware
Revenues
Revenues	$ 635	$ 886	$ 1,584	$ 1,632