Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 188,460	$ 764,375
Marketable securities	458,249
Prepaid expenses and other current assets	14,213	8,028
Total current assets	660,922	772,403
Property and equipment, net	1,705	23
Restricted cash	198	305
Other assets	1,494
Operating lease right-of-use assets, net	2,389	161
Total assets	666,708	772,892
Current liabilities
Accounts payable	2,551	4,534
Accrued expenses and other current liabilities	15,206	52,152
Current portion of operating lease liabilities	721	197
Total current liabilities	18,478	56,883
Operating lease liabilities	2,403
Income taxes payable	5,255	5,932
Total liabilities	26,136	62,815
Commitments and contingencies (see Note 8)
Stockholders’ equity:
Preferred stock, $0.001 par value per share; 10,000,000 shares authorized; no shares issued and outstanding as of December 31, 2022 and 2021
Common stock, $0.001 par value; 300,000,000 shares authorized; 83,287,639 and 83,102,730 shares issued and outstanding as of December 31, 2022 and 2021	83	83
Additional paid-in capital	701,052	653,964
Accumulated other comprehensive loss	(684)
Retained earnings (accumulated deficit)	(59,879)	56,030
Total stockholders’ equity	640,572	710,077
Total liabilities and stockholders’ equity	$ 666,708	$ 772,892