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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 100,708 $ 96,596
Short-term investments 313,343 307,772
Accounts receivable, net 33,438 36,059
Inventory 23,011 15,809
Prepaid expenses and other current assets 15,626 13,206
Total current assets 486,126 469,442
Restricted cash 9,416 9,566
Property and equipment, net 68,969 24,008
Operating lease right-of-use asset 28,142 20,009
Finance lease right-of-use asset 49,022 51,443
Intangible assets, net 332,781 357,693
Goodwill 66,134 66,134
Deposits and other assets 9,108 7,207
Total assets 1,049,698 1,005,502
Current liabilities:    
Accounts payable 7,333 4,371
Accrued liabilities 56,027 45,331
Total current liabilities 63,360 49,702
Convertible senior notes 280,026 189,416
Operating lease liability 29,650 20,704
Finance lease liability 72,699 60,690
Deferred tax liability, net 7,318 10,512
Other liabilities 9,494 7,029
Total liabilities 462,547 338,053
Commitments and contingencies (Note 12)
Stockholders' equity:    
Preferred stock, $0.001 par value; 5,000 shares authorized; no shares issued and outstanding as of December 31, 2021 and December 31, 2020
Common stock, $0.001 par value; 150,000 shares authorized; 46,993 and 45,275 shares issued and 46,965 and 45,247 shares outstanding at December 31, 2021 and December 31, 2020, respectively 47 45
Additional paid-in capital 952,432 976,590
Accumulated other comprehensive income 15 1,004
Accumulated deficit (365,211) (310,058)
Less treasury stock (28 shares as of December 31, 2021 and December 31, 2020) (132) (132)
Total stockholders' equity 587,151 667,449
Total liabilities and stockholders' equity $ 1,049,698 $ 1,005,502