Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 125,650	$ 145,647
Marketable securities	400,650	400,576
Prepaid expenses and other current assets	7,865	8,463
Total current assets	534,165	554,686
Restricted cash	286	284
Marketable securities, non-current	0	16,506
Other investments	19,000	32,001
Property and equipment, net	97,836	102,654
Operating lease right-of-use assets	38,695	39,663
Other non-current assets	4,238	4,235
Total assets	694,220	750,029
Current liabilities:
Accounts payable	4,895	4,817
Accrued liabilities and other current liabilities	24,914	28,126
Success payment liabilities	2,544	1,576
Total current liabilities	32,353	34,519
Operating lease liabilities, non-current	55,159	56,894
Other non-current liabilities	3,551	3,664
Total liabilities	91,063	95,077
Commitments and contingencies (Note 11)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000 shares authorized at March 31, 2024 and December 31, 2023; no shares issued and outstanding at March 31, 2024 and December 31, 2023	0	0
Common stock, $0.0001 par value; 500,000 shares authorized at March 31, 2024 and December 31, 2023; 254,927 and 253,958 shares issued and outstanding at March 31, 2024 and December 31, 2023, respectively	25	25
Additional paid-in capital	1,666,315	1,657,133
Accumulated other comprehensive loss	(404)	(94)
Accumulated deficit	(1,062,779)	(1,002,112)
Total stockholders’ equity	603,157	654,952
Total liabilities and stockholders’ equity	$ 694,220	$ 750,029