Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Gross Revenue	$ 245,052	$ 233,921
Direct Costs	153,730	142,818
Operating costs and expenses:
Indirect and selling expenses	69,637	68,262
Depreciation and amortization	3,076	2,799
Amortization of intangible assets	1,959	2,393
Total operating costs and expenses	74,672	73,454
Operating Income	16,650	17,649
Interest expense	(714)	(768)
Other (expense) income	(35)	78
Income Before Income Taxes	15,901	16,959
Provision for Income Taxes	6,185	6,847
Net Income	9,716	10,112
Earnings per Share:
Basic (in Dollars per share)	$ 0.49	$ 0.52
Diluted (in Dollars per share)	$ 0.48	$ 0.51
Weighted-average Common Shares Outstanding:
Basic (in Shares)	19,804	19,543
Diluted (in Shares)	20,277	19,875
Other Comprehensive Income:
Foreign currency translation adjustments	(347)	(245)
Comprehensive Income	$ 9,369	$ 9,867