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Balance Sheet Components - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]      
Lease impairment charges $ 0 $ 3,400,000  
Depreciation $ 3,500,000 $ 1,600,000 $ 700,000