Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 241,317	$ 146,475
Investments	100,498	98,031
Accounts receivable, net	29,454	78,811
Income tax receivable	5,504	1,316
Other current assets	13,052	12,889
Total current assets	389,825	337,522
Property and equipment, net	173,827	169,699
Right-of-use assets	101,893	92,454
Amortizable intangible assets, net	164,171	168,381
Goodwill	160,766	160,766
Other assets	2,209	1,641
Total assets	992,691	930,463
Current liabilities
Accounts payable	22,466	17,676
Accrued compensation and benefits	33,776	31,358
Accrued liabilities	31,935	26,725
Income taxes payable	94	10,250
Deferred revenue	7,216
Current portion of lease liability	11,980	11,024
Total current liabilities	107,467	97,033
Deferred income taxes, noncurrent	26,992	26,749
Other long-term liability	1,538	410
Lease liability, less current portion	97,499	88,257
Total liabilities	233,496	212,449
Commitments and contingencies
Stockholders' equity
Common stock, $0.01 par value, 100,000 shares authorized; 54,090 and 53,970 shares issued and 29,549 and 29,953 shares outstanding at June 30, 2024 and December 31, 2023, respectively	541	540
Treasury stock, at cost, 24,541 and 24,017 shares of common stock at June 30, 2024 and December 31, 2023, respectively	(1,918,810)	(1,849,693)
Additional paid-in capital	329,990	322,512
Accumulated other comprehensive loss	(126)	(57)
Retained earnings	2,347,600	2,244,712
Total stockholders' equity	759,195	718,014
Total liabilities and stockholders' equity	$ 992,691	$ 930,463