CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Revenues	$ 439,274	$ 379,044
Cost of services	301,686	268,933
Gross profit	137,588	110,111
Selling, general and administrative expenses	104,134	81,877
Amortization of intangible assets	6,172	5,379
Operating income	27,282	22,855
Interest expense, net	(3,328)	(5,096)
Income before income taxes	23,954	17,759
Provision for income taxes	9,906	7,543
Income from continuing operations	14,048	10,216
Gain on sale of discontinued operations, net of income taxes	0	14,412
Loss from discontinued operations, net of income taxes	(131)	(15)
Net income	13,917	24,613
Basic earnings per common share:
Income from continuing operations	$ 0.26	$ 0.19
Income (loss) from discontinued operations	$ 0.00	$ 0.27
Net Income	$ 0.26	$ 0.46
Diluted earnings per common share:
Income from continuing operations	$ 0.26	$ 0.19
Income (loss) from discontinued operations	$ (0.01)	$ 0.27
Net Income	$ 0.25	$ 0.46
Number of shares and share equivalents used to calculate earnings per share:
Basic	54,104	53,046
Diluted	54,975	54,036
Reconciliation of net income to comprehensive income:
Net income	13,917	24,613
Changes in fair value of derivatives, net of tax of $9 and $28, respectively.	44	67
Foreign currency translation adjustment, net of tax	(44)	(1,259)
Comprehensive income	$ 13,917	$ 23,421

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.