Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue	$ 598,290	$ 521,212	$ 489,720
Cost of services:
Compensation	224,893	202,049	189,271
Information technology	53,428	45,723	37,337
Occupancy	15,968	17,190	14,000
Direct project expenses	42,908	41,347	46,254
Other operating expenses	31,438	28,425	27,778
Amortization of acquisition related software and intangible assets	32,975	30,393	28,030
Total cost of services	401,610	365,127	342,670
Selling, general and administrative expenses	113,442	105,654	89,381
Settlement expense	20,000
Total operating expenses	535,052	470,781	432,051
Operating income	63,238	50,431	57,669
Interest expense	(11,310)	(10,871)	(8,519)
Interest income	1,089	295	321
Income before income taxes	53,017	39,855	49,471
Income taxes	(1,972)	(199)	11,835
Net Income	$ 54,989	$ 40,054	$ 37,636
Basic income per common share:
Net income (loss) per common share - basic (in dollars per share)	$ 0.66	$ 0.48	$ 0.45
Diluted income per common share:
Net income (loss) per common share - diluted (in dollars per share)	$ 0.64	$ 0.47	$ 0.43
Weighted average shares:
Basic (in shares)	83,625	83,821	84,221
Diluted (in shares)	86,144	85,088	86,987