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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 66,830 $ 100,444
Marketable securities 76,271 177,188
Interest receivable 1,219 794
Accounts receivable 2,716 3,678
Prepaid expenses and other current assets 12,573 18,223
Total current assets 159,609 300,327
Marketable securities, non-current 39,037 29,845
Property and equipment, net 60,717 63,531
Intangible assets 0 50,729
Goodwill 0 37,552
Operating lease right-of-use assets 46,773 62,002
Other non-current assets 17,438 17,023
Restricted cash 1,500 1,500
Total assets 325,074 562,509
Current liabilities:    
Accounts payable 14,837 22,418
Accrued compensation and employee benefits 13,118 21,506
Other accrued liabilities 18,964 16,007
Deferred revenues 6,873 51,780
Total current liabilities 53,792 111,711
Deferred revenues, non-current 0 109,377
Long-term portion of lease liabilities 36,373 38,986
Deferred income tax 0 6,270
Other non-current liabilities 1,267 1,207
Total liabilities 91,432 267,551
Commitments and contingencies
Stockholders’ equity:    
Preferred stock 0 0
Common stock 1,771 1,668
Additional paid-in capital 1,479,725 1,450,239
Accumulated deficit (1,241,918) (1,148,545)
Accumulated other comprehensive loss (5,936) (8,404)
Total stockholders’ equity 233,642 294,958
Total liabilities and stockholders’ equity $ 325,074 $ 562,509