CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenue:
Revenue before reimbursements (net revenue)	$ 125,829	$ 118,981	$ 373,030	$ 343,992
Reimbursements	4,432	4,523	13,721	14,148
Total revenue	130,261	123,504	386,751	358,140
Operating expenses:
Salaries and employee benefits	84,046	81,671	252,089	236,216
General and administrative expenses	32,226	28,957	98,092	93,292
Reimbursed expenses	4,432	4,523	13,721	14,148
Total operating expenses	120,704	115,151	363,902	343,656
Operating income	9,557	8,353	22,849	14,484
Non-operating expense:
Interest, net	(152)	(91)	(232)	(120)
Other, net	(488)	(709)	(444)	(1,675)
Net non-operating expense	(640)	(800)	(676)	(1,795)
Income before income taxes	8,917	7,553	22,173	12,689
Provision for income taxes	5,925	3,429	16,138	7,844
Net income	2,992	4,124	6,035	4,845
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	(2,315)	232	(1,067)	(1,769)
Net unrealized (loss) gain on available-for-sale investments	(349)	436	160	783
Unrealized (loss) gain on cash flow hedge	77	(74)	8	76
Other comprehensive (loss) income, net of tax	(2,587)	594	(899)	(910)
Comprehensive income	$ 405	$ 4,718	$ 5,136	$ 3,935
Basic weighted average common shares outstanding	18,233	18,104	18,200	18,064
Dilutive common shares	233	119	197	143
Diluted weighted average common shares outstanding	18,466	18,223	18,397	18,207
Basic net income per common share	$ 0.16	$ 0.23	$ 0.33	$ 0.27
Diluted net income per common share	$ 0.16	$ 0.23	$ 0.33	$ 0.27
Cash dividends paid per share	$ 0.13	$ 0.13	$ 0.39	$ 0.26