CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 108,497	$ 104,268
Marketable securities	468,557	336,473
Account receivable	5,929	6,393
Prepaid expenses and other current assets	6,790	6,988
Total current assets	589,773	454,122
Property and equipment, net	11,544	8,902
Operating lease right-of-use asset	59,692	27,435
Intangible assets, net	59,876	60,945
Goodwill	14,608	14,608
Restricted cash	1,737	1,084
Other noncurrent assets	758	305
Total assets	737,988	567,401
Current liabilities:
Accounts payable	14,057	12,609
Accrued expenses and other current liabilities	27,721	18,784
Operating lease liability	6,214	3,672
Deferred revenue, current	12,358	12,111
Total current liabilities	60,350	47,176
Deferred revenue, noncurrent	6,573	8,481
Deferred tax liability	7,444	7,444
Operating lease liability	60,419	28,992
Other noncurrent liabilities	634	632
Total liabilities	135,420	92,725
Commitments and contingencies (Note 7)
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 and zero shares authorized at December 31, 2021 and 2020, respectively; zero shares issued and outstanding at December 31, 2021 and 2020, respectively
Common stock, $0.0001 par value; 300,000,000 shares authorized at December 31, 2021 and 2020; 74,142,619 and 66,599,748 shares issued and outstanding at December 31, 2021 and 2020, respectively	8	7
Additional paid-in capital	1,055,572	740,098
Accumulated other comprehensive income (loss)	(376)	116
Accumulated deficit	(452,636)	(265,545)
Total stockholders' equity	602,568	474,676
Total liabilities, redeemable convertible preferred stock and stockholders' equity	$ 737,988	$ 567,401