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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 56,514 $ 100,444
Total marketable securities 75,597 177,188
Interest receivable 602 794
Accounts receivable 1,148 3,678
Prepaid expenses and other current assets 13,715 18,223
Total current assets 147,576 300,327
Marketable securities, non-current 0 29,845
Property and equipment, net 28,436 63,531
Intangible assets 0 50,729
Goodwill 0 37,552
Operating lease right-of-use assets 27,211 62,002
Other non-current assets 14,974 17,023
Restricted cash 1,500 1,500
Total assets 219,697 562,509
Current liabilities:    
Accounts payable 15,457 22,418
Accrued compensation and employee benefits 17,306 21,506
Other accrued liabilities 14,234 16,007
Deferred revenues 1,485 51,780
Total current liabilities 48,482 111,711
Deferred revenues, non-current 0 109,377
Long-term portion of lease liabilities 34,975 38,986
Deferred income tax 0 6,270
Other non-current liabilities 1,318 1,207
Total liabilities 84,775 267,551
Commitments and contingencies
Stockholders’ equity:    
Preferred stock 0 0
Common stock 1,773 1,668
Additional paid-in capital 1,485,811 1,450,239
Accumulated deficit (1,346,081) (1,148,545)
Accumulated other comprehensive loss (6,581) (8,404)
Total stockholders’ equity 134,922 294,958
Total liabilities and stockholders’ equity $ 219,697 $ 562,509