Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 224,372	$ 123,554
Marketable securities	371,376	516,598
Prepaid expenses and other current assets	10,662	11,143
Total current assets	606,410	651,295
Restricted cash	282	280
Marketable securities, non-current	36,952	70,117
Other investments	32,001	44,924
Property and equipment, net	113,677	123,023
Operating lease right-of-use assets	41,512	43,242
Other non-current assets	4,520	4,680
Total assets	835,354	937,561
Current liabilities:
Accounts payable	5,805	3,917
Accrued liabilities and other current liabilities	24,832	28,755
Success payment liabilities	3,753	4,356
Total current liabilities	34,390	37,028
Operating lease liabilities, non-current	60,221	63,168
Other non-current liabilities	3,888	4,113
Total liabilities	98,499	104,309
Commitments and contingencies (Note 11)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000 shares authorized at June 30, 2023 and December 31, 2022; no shares issued and outstanding at June 30, 2023 and December 31, 2022	0	0
Common stock, $0.0001 par value; 500,000 shares authorized at June 30, 2023 and December 31, 2022; 251,027 and 249,567 shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively	25	25
Additional paid-in capital	1,637,538	1,608,306
Accumulated other comprehensive loss	(2,379)	(7,599)
Accumulated deficit	(898,329)	(767,480)
Total stockholders’ equity	736,855	833,252
Total liabilities and stockholders’ equity	$ 835,354	$ 937,561