Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Summary of Reconciliation of Earnout Liability Measured and Carried Fair Value on a Recurring Basis (Details)

v3.20.4
Summary of Significant Accounting Policies - Summary of Reconciliation of Earnout Liability Measured and Carried Fair Value on a Recurring Basis (Details) - Fair Value Measurements Recurring - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Beginning Balance $ 26,559  
Addition for acquisition   $ 25,749
Change in fair value 1,053 810
Ending Balance $ 27,612 $ 26,559