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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Assets    
Cash and cash equivalents $ 114,846 $ 147,435
Investment securities, available-for-sale 301,977 373,271
Accounts receivable, net 62,195 64,366
Interest and other receivables 885 978
Inventory 6,636 7,881
Prepaid expenses 21,398 23,892
Total current assets 507,937 617,823
Property and equipment, net 6,021 8,047
Operating lease right-of-use assets 55,573 58,268
Restricted cash 5,770 5,770
Long-term inventory 4,924 6,217
Other assets 7,587 3,997
Total assets 587,812 700,122
Liabilities and stockholders’ equity    
Accounts payable 12,746 6,876
Accrued liabilities 112,884 89,192
Total current liabilities 125,630 96,068
Operating lease liabilities 52,695 56,126
Other long-term liabilities 9,074 7,034
Total liabilities 187,399 159,228
Commitments and contingencies (Note 9)
Stockholders’ equity:    
Preferred stock, $0.0001 par value; 5,000,000 shares authorized at December 31, 2022 and 2021; no shares issued and outstanding at December 31, 2022 and 2021 0 0
Common stock, $0.0001 par value; 225,000,000 shares authorized at December 31, 2022 and 2021; 162,064,872 shares and 161,012,695 shares issued and outstanding at December 31, 2022 and 2021, respectively 16 16
Additional paid-in capital 2,770,923 2,694,646
Accumulated deficit (2,369,551) (2,153,576)
Accumulated other comprehensive (loss) income (975) (192)
Total stockholders’ equity 400,413 540,894
Total liabilities and stockholders’ equity $ 587,812 $ 700,122