Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 85,480	$ 78,237
Accounts receivable, net	312,128	350,962
Prepaids and other current assets	80,709	61,808
Income tax receivable	37,293	35,470
Total current assets	515,610	526,477
Long-term assets
Property, plant and equipment, net	164,972	161,523
Operating lease assets	146,092
Goodwill	203,823	204,633
Deferred Tax Assets, Net	12,103	15,523
Other intangible assets, net	72,091	80,911
Other long-term assets	67,175	65,441
Total long-term assets	666,256	528,031
Total assets	1,181,866	1,054,508
Current liabilities
Accounts payable	66,229	59,447
Accrued employee compensation and benefits	111,430	83,437
Other accrued expenses	77,610	15,963
Income taxes payable	10,186	12,325
Deferred revenue	39,755	44,926
Current operating lease liabilities	41,512
Other current liabilities	11,584	19,320
Total current liabilities	358,306	235,418
Long-term liabilities
Line of credit	199,000	282,000
Deferred tax liabilities, net	9,916	10,371
Non-current Income Taxes Payable	27,277	30,754
Deferred rent		16,584
Non-current operating lease liabilities	125,998
Other long-term liabilities	74,226	126,532
Total long-term liabilities	436,417	466,241
Total liabilities	794,723	701,659
Stockholders' equity
Common stock - $0.01 par value; 150,000,000 shares authorized; 46,485,595 and 46,194,717 shares outstanding as of September 30, 2019 and December 31, 2018, respectively	465	462
Additional paid-in capital	353,372	353,932
Treasury stock at cost: 35,566,658 and 35,857,536 shares as of September 30, 2019 and December 31, 2018, respectively	(605,370)	(610,177)
Accumulated other comprehensive income (loss)	(118,700)	(124,596)
Retained earnings	744,954	725,551
Noncontrolling interest	12,422	7,677
Total stockholders' equity	387,143	352,849
Total liabilities and stockholders' equity	$ 1,181,866	$ 1,054,508