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Selected Balance Sheet Components - Schedule of Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]        
Cash and cash equivalents $ 58,907 $ 7,143    
Restricted cash included in deposits and other noncurrent assets (see Note 14) 1,700 1,700    
Total cash, cash equivalents, and restricted cash as shown in the condensed consolidated statements of cash flows $ 60,607 $ 8,843 $ 18,277 $ 23,773