Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 148,242	$ 128,697
Receivables, net	349,400	347,425
Prepaid expenses	19,339	23,754
Other current assets	18,591	16,761
Total current assets	535,572	516,637
Property and equipment, net	128,775	135,418
Operating lease right-of-use assets	218,057
Goodwill, net	303,920	302,517
Intangibles, net	170,277	174,031
Deferred charges and other assets	46,505	43,364
Total assets	1,403,106	1,171,967
Current liabilities:
Accounts payable	28,809	26,923
Accrued employee compensation and benefits	103,751	95,813
Income taxes payable	2,794	1,433
Deferred revenue and customer liabilities	27,077	30,176
Operating lease liabilities	45,636
Other accrued expenses and current liabilities	27,359	31,235
Total current liabilities	235,426	185,580
Long-term debt	93,000	102,000
Long-term income tax liabilities	23,975	23,787
Long-term operating lease liabilities	186,079
Other long-term liabilities	22,585	33,991
Total liabilities	561,065	345,358
Commitments and loss contingency (Note 13)
Shareholders' equity:
Preferred stock, $0.01 par value per share, 10,000 shares authorized; no shares issued and outstanding
Common stock, $0.01 par value per share, 200,000 shares authorized; 42,565 and 42,778 shares issued, respectively	426	428
Additional paid-in capital	287,347	286,544
Retained earnings	610,585	598,788
Accumulated other comprehensive income (loss)	(53,761)	(56,775)
Treasury stock at cost: 133 and 126 shares, respectively	(2,556)	(2,376)
Total shareholders' equity	842,041	826,609
Total liabilities and shareholders' equity	$ 1,403,106	$ 1,171,967