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)

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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
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Addition for acquisition $ 25,749
Change in fair value 810
Ending Balance $ 26,559