CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues	$ 485,323	$ 434,424	$ 915,368	$ 841,275
Cost of services	326,789	292,519	620,959	571,215
Gross profit	158,534	141,905	294,409	270,060
Selling, general and administrative expenses	118,867	99,614	224,802	195,723
Amortization of intangible assets	6,957	5,522	11,826	11,060
Operating income	32,710	36,769	57,781	63,277
Interest expense, net	(4,736)	(3,103)	(7,803)	(6,431)
Write off of Deferred Debt Issuance Cost		0	(3,751)	0
Income before income taxes	24,223	33,666	46,227	56,846
Provision for income taxes	9,888	14,025	18,869	23,600
Income from continuing operations	14,335	19,641	27,358	33,246
Gain on sale of discontinued operations, net of income taxes	0	0	25,703	0
Income (loss) from discontinued operations, net of income taxes	(83)	1,148	326	1,460
Net income	$ 14,252	$ 20,789	$ 53,387	$ 34,706
Basic earnings per common share:
Income from continuing operations	$ 0.28	$ 0.36	$ 0.53	$ 0.61
Discontinued operations	(0.01)	0.02	0.50	0.03
Net income	0.27	0.38	1.03	0.64
Diluted earnings per common share:
Income from continuing operations	0.27	0.36	0.52	0.60
Discontinued operations	0.00	0.02	0.50	0.03
Net income	$ 0.27	$ 0.38	$ 1.02	$ 0.63
Number of shares and share equivalents used to calculate earnings per share:
Basic	51,978	54,372	51,749	54,239
Diluted	52,633	55,173	52,435	55,098
Reconciliation of net income to comprehensive income:
Net income	$ 14,252	$ 20,789	$ 53,387	$ 34,706
Changes in fair value of derivatives, net of tax	75	7	122	51
Foreign currency translation adjustment, net of tax	828	(160)	(2,896)	(204)
Comprehensive income	$ 15,155	$ 20,636	$ 50,613	$ 34,553