Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 103,209	$ 103,077
Receivables, net of allowance of $4.8 million and $4.8 million, respectively	418,105	415,746
Prepaid expenses	22,690	21,348
Other current assets	22,802	19,718
Total current assets	566,806	559,889
Property and equipment, net	116,797	121,084
Operating lease right-of-use assets	132,032	158,866
Goodwill, net	299,669	299,409
Intangibles, net	227,891	233,975
Deferred charges and other assets	63,249	62,582
Total assets	1,406,444	1,435,805
Current liabilities:
Accounts payable	30,277	32,049
Accrued employee compensation and benefits	138,810	147,212
Income taxes payable	1,745	3,521
Deferred revenue and customer liabilities	24,270	24,802
Operating lease liabilities	48,321	55,928
Other accrued expenses and current liabilities	36,401	31,994
Total current liabilities	279,824	295,506
Long-term debt	23,000	63,000
Long-term income tax liabilities	19,607	21,586
Long-term operating lease liabilities	100,342	126,336
Other long-term liabilities	39,028	35,723
Total liabilities	461,801	542,151
Commitments and loss contingencies (Note 11)
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; 39,797 and 39,614 shares issued, respectively	398	396
Additional paid-in capital	303,065	298,037
Retained earnings	687,158	639,000
Accumulated other comprehensive income (loss)	(42,786)	(40,999)
Treasury stock at cost: 144 and 135 shares, respectively	(3,192)	(2,780)
Total shareholders' equity	944,643	893,654
Total liabilities and shareholders' equity	$ 1,406,444	$ 1,435,805