Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 286,214	$ 123,554
Marketable securities	289,217	516,598
Prepaid expenses and other current assets	11,423	11,143
Total current assets	586,854	651,295
Restricted cash	283	280
Marketable securities, non-current	22,729	70,117
Other investments	32,001	44,924
Property and equipment, net	108,096	123,023
Operating lease right-of-use assets	40,603	43,242
Other non-current assets	4,423	4,680
Total assets	794,989	937,561
Current liabilities:
Accounts payable	4,365	3,917
Accrued liabilities and other current liabilities	29,652	28,755
Success payment liabilities	1,047	4,356
Total current liabilities	35,064	37,028
Operating lease liabilities, non-current	58,576	63,168
Other non-current liabilities	3,776	4,113
Total liabilities	97,416	104,309
Commitments and contingencies (Note 11)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000 shares authorized at September 30, 2023 and December 31, 2022; no shares issued and outstanding at September 30, 2023 and December 31, 2022	0	0
Common stock, $0.0001 par value; 500,000 shares authorized at September 30, 2023 and December 31, 2022; 251,869 and 249,567 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively	25	25
Additional paid-in capital	1,647,911	1,608,306
Accumulated other comprehensive loss	(1,181)	(7,599)
Accumulated deficit	(949,182)	(767,480)
Total stockholders’ equity	697,573	833,252
Total liabilities and stockholders’ equity	$ 794,989	$ 937,561