CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 201,262	$ 696,148
Marketable securities	1,348,219	1,156,807
Accounts receivable	0	1,254
Prepaid expenses and other current assets	29,658	25,072
Total current assets	1,579,139	1,879,281
Property and equipment, net	24,814	22,865
Operating lease right-of-use asset	74,338	77,149
Intangible assets, net	56,937	57,739
Goodwill	14,608	14,608
Restricted cash	2,888	3,031
Other noncurrent assets	10,275	7,032
Total assets	1,762,999	2,061,705
Current liabilities:
Accounts payable	24,456	61,788
Accrued expenses and other current liabilities	78,011	74,694
Operating lease liability, current	8,396	7,369
Total current liabilities	110,863	143,851
Deferred tax liability	3,115	3,115
Operating lease liability, noncurrent	78,310	80,575
Warrant liabilities	2,763	6,512
Other noncurrent liabilities	1,644	1,458
Total liabilities	196,695	235,511
Commitments and contingencies (Note 8)
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized at September 30, 2024 and December 31, 2023, respectively; none issued and outstanding at September 30, 2024 and December 31, 2023, respectively	0	0
Common stock, $0.0001 par value; 300,000,000 shares authorized as of September 30, 2024 and December 31, 2023, respectively; 173,308,336 and 170,234,594 shares issued as of September 30, 2024 and December 31, 2023, respectively; 167,748,336 and 164,674,594 shares outstanding as of September 30, 2024 and December 31, 2023, respectively	16	16
Additional paid-in capital	3,105,708	2,963,342
Accumulated other comprehensive income	3,812	544
Accumulated deficit	(1,543,232)	(1,137,708)
Total stockholders' equity	1,566,304	1,826,194
Total liabilities and stockholders' equity	$ 1,762,999	$ 2,061,705