Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 172,532	$ 122,272
Restricted cash and cash equivalents		300
Investments	14,691	21,601
Accounts receivable, net	20,553	48,939
Interest receivable on Secured Note	13	5,011
Income tax receivable	1,685	2,186
Other current assets	13,145	8,035
Total current assets	222,619	208,344
Property and equipment, net	124,066	119,734
Right-of-use assets	43,280	27,770
Secured Note receivable, net	1,039,912	969,912
Amortizable intangible assets, net	197,847	202,057
Goodwill	160,766	160,766
Other assets	1,794	1,706
Total assets	1,790,284	1,690,289
Current liabilities
Accounts payable	19,901	14,835
Accrued compensation and benefits	26,809	20,800
Accrued liabilities	20,033	16,771
Income taxes payable	38,281	6,576
Deferred revenue	7,709	20
Current portion of lease liability	4,709	3,084
Current portion of notes payable	33,144	33,144
Total current liabilities	150,586	95,230
Deferred income taxes, noncurrent	18,618	18,320
Other long-term liability	8	13
Lease liability, less current portion	40,483	25,519
Notes payable, less current portion	91,202	107,774
Total liabilities	300,897	246,856
Commitments and contingencies
Stockholders' equity
Preferred stock, $0.01 par value, 10,000 shares authorized; 0 shares issued and outstanding at March 31, 2020 and December 31, 2019
Common stock, $0.01 par value, 100,000 shares authorized; 53,221 and 53,054 shares issued and 47,413 and 48,105 shares outstanding at March 31, 2020 and December 31, 2019, respectively	532	531
Treasury stock, at cost, 5,808 and 4,949 shares of common stock at March 31, 2020 and December 31, 2019, respectively	(243,382)	(169,365)
Additional paid-in capital	276,330	270,923
Retained earnings	1,455,907	1,341,344
Total stockholders' equity	1,489,387	1,443,433
Total liabilities and stockholders' equity	$ 1,790,284	$ 1,690,289