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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 171,223 $ 678,393
Short-term investments 233,967 8,144
Accounts receivable, net ($10,930 and $4,127 from related parties) 17,401 41,883
Inventories 31,015 16,530
Prepaid expenses and other current assets ($0 and $889 from a related party) 20,453 10,160
Total current assets 474,059 755,110
Restricted time deposits 2,072 2,072
Long-term investments 167,796 244
Property and equipment, net 28,277 33,647
Finance lease right-of-use assets 761 29,606
Equity method investment in unconsolidated variable interest entity 3,825 2,728
Operating lease right-of-use assets 91,112 2,043
Other assets 5,919 1,390
Total assets 773,821 826,840
Current liabilities:    
Accounts payable ($0 and $1,118 to a related party) 26,097 24,789
Accrued and other current liabilities ($4 and $24 to a related party) 172,588 118,333
Deferred revenue ($3,201 and $2,907 to related parties) 15,857 6,547
Finance lease liabilities, current 11 12,330
Operating lease liabilities, current 10,944 1,188
Total current liabilities 225,497 163,187
Product development obligations 17,613 18,697
Deferred revenue, net of current ($25,891 and $4,636 to a related party) 186,801 138,474
Finance lease liabilities, non-current 3 25,391
Operating lease liabilities, non-current 88,776 853
Other long-term liabilities 26,018 38,789
Total liabilities 544,708 385,391
Commitments and Contingencies (Note 9)
Stockholders’ equity:    
Preferred stock, $0.01 par value; 125,000 shares authorized; no shares issued and outstanding at December 31, 2021 and 2020 0
Common stock, $0.01 par value; 225,000 shares authorized at December 31, 2021 and 2020; 92,881 and 91,441 shares issued and outstanding at December 31, 2021 and 2020 929 914
Additional paid-in capital 1,476,414 1,399,774
Accumulated other comprehensive loss (4,163) (4,499)
Accumulated deficit (1,264,034) (974,011)
Total stockholders’ equity 209,146 422,178
Non-controlling interests 19,967 19,271
Total equity 229,113 441,449
Total liabilities, stockholders’ equity and non-controlling interests $ 773,821 $ 826,840