Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 93,879	$ 74,437
Accounts receivable, net	301,770	385,751
Prepaids and other current assets	86,054	63,668
Income tax receivable	13,447	11,099
Assets held for sale	7,822	7,835
Total current assets	502,972	542,790
Long-term assets
Property, plant and equipment, net	161,244	163,297
Goodwill	201,826	206,694
Deferred tax assets, net	22,335	12,012
Other intangible assets, net	82,902	92,086
Other long-term assets	67,327	61,857
Total long-term assets	535,634	535,946
Total assets	1,038,606	1,078,736
Current liabilities
Accounts payable	51,567	46,029
Accrued employee compensation and benefits	88,636	83,997
Other accrued expenses	30,324	18,993
Income taxes payable	13,501	7,497
Deferred revenue	33,555	21,628
Other current liabilities	21,841	22,312
Liabilities held for sale	3,546	1,322
Total current liabilities	242,970	201,778
Long-term liabilities
Line of credit	272,500	344,000
Deferred tax liabilities, net	10,698	11,285
Non-current Income Taxes Payable	38,302	47,871
Deferred rent	14,942	15,714
Other long-term liabilities	130,336	95,243
Total long-term liabilities	466,778	514,113
Total liabilities	709,748	715,891
Stockholders' equity
Common stock - $0.01 par value; 150,000,000 shares authorized; 46,033,516 and 45,861,959 shares outstanding as of June 30, 2018 and December 31, 2017, respectively	462	459
Additional paid-in capital	351,141	351,725
Treasury stock at cost: 36,018,737 and 36,190,294 shares as of June 30, 2018 and December 31, 2017, respectively	(610,214)	(615,677)
Accumulated other comprehensive income (loss)	(125,973)	(102,304)
Retained earnings	705,218	721,664
Noncontrolling interest	8,224	6,978
Total stockholders' equity	328,858	362,845
Total liabilities and stockholders' equity	$ 1,038,606	$ 1,078,736