Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 226,428	$ 303,222
Accounts receivable, net	1,190,521	1,102,142
Current portion of notes receivable	45,145	30,997
Prepaid expenses and other current assets	107,117	119,092
Total current assets	1,569,211	1,555,453
Property and equipment, net	152,307	159,662
Operating lease assets	202,511	208,910
Goodwill	1,230,932	1,234,569
Intangible assets, net	18,377	18,285
Notes receivable, net	106,201	75,431
Other assets	78,105	73,568
Total assets	3,357,644	3,325,878
Current liabilities
Accounts payable, accrued expenses and other	182,667	223,758
Accrued compensation	463,669	601,074
Billings in excess of services provided	67,558	67,937
Total current liabilities	713,894	892,769
Long-term debt	60,000	0
Noncurrent operating lease liabilities	214,517	223,774
Deferred income taxes	136,374	140,976
Other liabilities	83,479	86,939
Total liabilities	1,208,264	1,344,458
Commitments and contingencies (Note 10)
Stockholders’ equity
Preferred stock, $0.01 par value; shares authorized — 5,000; none outstanding	0	0
Common stock, $0.01 par value; shares authorized — 75,000; shares issued and outstanding 35,902 (2024) and 35,521 (2023)	359	355
Additional paid-in capital	33,955	16,760
Retained earnings	2,278,677	2,114,765
Accumulated other comprehensive loss	(163,611)	(150,460)
Total stockholders’ equity	2,149,380	1,981,420
Total liabilities and stockholders’ equity	$ 3,357,644	$ 3,325,878