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Income Taxes - Summary of Changes to Company's Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]    
Balance $ 662 $ 479
Increases related to prior year positions   183
Increases related to current year positions 212  
Balance $ 874 $ 662