Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 9,852	$ 1,968
Accounts receivable, net	205,527	167,066
Prepaid expenses and other current assets	26,633	24,554
Deferred income tax assets	14,550	17,314
Total current assets	256,562	210,902
Property and equipment, net	57,149	44,338
Intangible assets, net	27,776	10,778
Goodwill	571,863	615,343
Other assets	20,984	22,836
Total assets	934,334	904,197
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	11,087	13,415
Accrued liabilities	11,006	12,691
Accrued compensation-related costs	59,002	78,610
Income tax payable		1,137
Other current liabilities	28,990	32,009
Total current liabilities	110,085	137,862
Non-current liabilities:
Deferred income tax liabilities	71,240	86,571
Other non-current liabilities	38,888	26,016
Bank debt non-current	188,825	56,673
Total non-current liabilities	298,953	169,260
Total liabilities	409,038	307,122
Stockholders' equity:
Common stock	63	63
Additional paid-in capital	606,606	598,724
Treasury stock	(262,522)	(247,106)
Retained earnings	189,755	254,735
Accumulated other comprehensive loss	(8,606)	(9,341)
Total stockholders' equity	525,296	597,075
Total liabilities and stockholders' equity	$ 934,334	$ 904,197