Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 82,407	$ 78,237
Accounts receivable, net	331,096	350,962
Prepaids and other current assets	96,287	61,808
Income tax receivable	40,035	35,470
Total current assets	549,825	526,477
Long-term assets
Property, plant and equipment, net	176,633	161,523
Operating lease assets	150,808
Goodwill	301,694	204,633
Deferred tax assets, net	13,263	15,523
Other intangible assets, net	115,596	80,911
Other long-term assets	68,969	65,441
Total long-term assets	826,963	528,031
Total assets	1,376,788	1,054,508
Current liabilities
Accounts payable	64,440	59,447
Accrued employee compensation and benefits	114,165	83,437
Other accrued expenses	79,171	15,963
Income taxes payable	11,307	12,325
Deferred revenue	39,447	44,926
Current operating lease liabilities	45,218
Other current liabilities	9,541	19,320
Total current liabilities	363,289	235,418
Long-term liabilities
Line of credit	290,000	282,000
Deferred tax liabilities, net	10,602	10,371
Non-current Income Taxes Payable	25,208	30,754
Deferred rent		16,584
Non-current operating lease liabilities	127,395
Other long-term liabilities	79,641	126,532
Total long-term liabilities	532,846	466,241
Total liabilities	896,135	701,659
Redeemable noncontrolling interest	48,923
Stockholders' equity
Common stock - $0.01 par value; 150,000,000 shares authorized; 46,488,938 and 46,194,717 shares outstanding as of December 31, 2019 and December 31, 2018, respectively	465	462
Additional paid-in capital	356,409	353,932
Treasury stock at cost: 35,563,315 and 35,857,536 shares as of December 31, 2019 and December 31, 2018, respectively	(605,314)	(610,177)
Accumulated other comprehensive income (loss)	(106,234)	(124,596)
Retained earnings	773,218	725,551
Noncontrolling interest	13,186	7,677
Total stockholders' equity	431,730	352,849
Total liabilities and stockholders' equity	$ 1,376,788	$ 1,054,508