Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 61,308	$ 60,304
Accounts receivable, net	256,039	283,474
Prepaids and other current assets	61,441	64,180
Income tax receivable	8,707	7,114
Assets held for sale	9,967
Total current assets	397,462	415,072
Long-term assets
Property, plant and equipment, net	164,007	168,289
Goodwill	111,088	114,183
Deferred tax assets, net	55,251	52,082
Other intangible assets, net	33,994	51,215
Other long-term assets	45,485	42,486
Total long-term assets	409,825	428,255
Total assets	807,287	843,327
Current liabilities
Accounts payable	37,092	43,323
Accrued employee compensation and benefits	71,878	71,634
Other accrued expenses	25,080	33,160
Income taxes payable	8,308	9,125
Deferred revenue	24,372	26,184
Other current liabilities	29,911	23,480
Liabilities held for sale	1,121
Total current liabilities	197,762	206,906
Long-term liabilities
Line of credit	129,000	100,000
Deferred tax liabilities, net	2,039	3,333
Deferred rent	12,970	11,791
Other long-term liabilities	70,453	76,349
Total long-term liabilities	214,462	191,473
Total liabilities	412,224	398,379
Commitments and contingencies (Note 10)
Mandatorily redeemable noncontrolling interest		4,131
Stockholders' equity
Common stock - $0.01 par value; 150,000,000 shares authorized; 46,708,311 and 48,481,323 shares outstanding as of September 30, 2016 and December 31, 2015, respectively	468	485
Additional paid-in capital	346,637	347,251
Treasury stock at cost: 35,343,942 and 33,570,930 shares as of September 30, 2016 and December 31, 2015, respectively	(586,057)	(533,744)
Accumulated other comprehensive income (loss)	(109,832)	(101,365)
Retained earnings	736,551	720,989
Noncontrolling interest	7,296	7,201
Total stockholders' equity	395,063	440,817
Total liabilities and stockholders' equity	$ 807,287	$ 843,327