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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 69,246 $ 61,904
Short-term investments 396,259 455,416
Prepaid expenses and other current assets 7,949 11,504
Total current assets 473,454 528,824
Long-term investments 32,170 59,151
Operating lease right-of-use asset 78,643 83,592
Property and equipment, net 102,826 112,839
Restricted cash 10,292 10,292
Other long-term assets 9,576 9,564
Equity method investment 5,365 12,817
Total assets 712,326 817,079
Current liabilities:    
Accounts payable 6,205 13,890
Accrued and other current liabilities 31,195 39,743
Deferred revenue 236 885
Total current liabilities 37,636 54,518
Lease liability, non-current 90,102 95,122
Other long-term liabilities 1,486 1,569
Total liabilities 129,224 151,209
Commitments and Contingencies (Notes 6 and 7)
Stockholders’ equity:    
Preferred stock, $0.001 par value: 10,000,000 shares authorized as of September 30, 2023 and December 31, 2022; no shares were issued and outstanding as of September 30, 2023 and December 31, 2022 0 0
Common stock, $0.001 par value: 400,000,000 shares authorized as of September 30, 2023 and December 31, 2022; 168,175,221 and 144,438,304 shares issued and outstanding as of September 30, 2023 and December 31, 2022, respectively 168 144
Additional paid-in capital 2,059,333 1,911,632
Accumulated deficit (1,473,988) (1,235,980)
Accumulated other comprehensive loss (2,411) (9,926)
Total stockholders’ equity 583,102 665,870
Total liabilities and stockholders’ equity $ 712,326 $ 817,079