CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Income Statement
Revenues	$ 162,370	$ 116,141	$ 435,491	$ 316,913
Cost of services	107,842	75,038	289,015	209,691
Gross profit	54,528	41,103	146,476	107,222
Selling, general and administrative expenses	40,792	33,661	115,546	95,456
Operating income	13,736	7,442	30,930	11,766
Interest expense	(750)	(1,601)	(2,264)	(4,768)
Interest income	18	7	39	71
Income before income taxes	13,004	5,848	28,705	7,069
Provision for income taxes	5,237	2,685	11,909	3,268
Net income	7,767	3,163	16,796	3,801
Earnings per share:
Basic	$ 0.21	$ 0.09	$ 0.46	$ 0.10
Diluted	$ 0.21	$ 0.09	$ 0.44	$ 0.10
Number of shares used to calculate earnings per share:
Basic	37,001	36,506	36,866	36,432
Diluted	37,769	36,974	37,756	37,020
Reconciliation of net income to comprehensive income:
Net income	7,767	3,163	16,796	3,801
Changes in fair value of derivative, net of tax of $67 and $261 for the three and nine months ended September 30, 2011, respectively	(113)	0	(440)	0
Foreign currency translation adjustment	(1,908)	777	(470)	(968)
Comprehensive income	$ 5,746	$ 3,940	$ 15,886	$ 2,833