Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 285,963	$ 90,474
Restricted cash	5,053	5,243
Marketable securities	262,710	360,613
Accounts receivable, net of allowance for doubtful accounts of $250 and $125	9,652	55,953
Unbilled and other receivables, net for allowance for unbilled receivables of $100 and $100	14,585	13,137
Prepaid expenses	13,999	8,569
Total current assets	591,962	533,989
Property and equipment, net	20,353	14,244
Equity investments	106,404	25,683
Goodwill	4,791	4,791
Intangible assets, net	0	587
Right of use assets	112,984	105,982
Other assets	5,072	3,311
Total assets	841,566	688,587
Current liabilities:
Accounts payable	12,428	9,470
Income taxes payable	5,134	355
Accrued payroll, taxes, and benefits	21,328	24,882
Deferred revenue	46,674	57,931
Lease liabilities	13,921	11,006
Other accrued liabilities	7,317	5,166
Total current liabilities	106,802	108,810
Deferred revenue, long-term	15,620	25,598
Lease liabilities, long-term	107,319	105,485
Other liabilities, long-term	600	800
Total liabilities	230,341	240,693
Commitments and contingencies (Note 5)
Stockholders' equity:
Preferred stock, $0.01 par value. Authorized 10,000,000 shares; zero shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively	0	0
Additional paid-in capital	856,913	828,700
Accumulated deficit	(245,724)	(379,138)
Accumulated other comprehensive loss	(683)	(2,382)
Total stockholders' equity	611,225	447,894
Total liabilities and stockholders' equity	841,566	688,587
Common Stock
Stockholders' equity:
Common and Limited Stock	627	622
Limited common stock
Stockholders' equity:
Common and Limited Stock	$ 92	$ 92