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Income Taxes - Tax Receivable Agreement (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Dec. 31, 2020
Apr. 30, 2020
Jan. 31, 2020
Jan. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]              
Payments for TRA         $ 71,958 $ 101,482 $ 58,908
Early termination payment $ 1,000            
IRS              
Operating Loss Carryforwards [Line Items]              
Payments for TRA   $ 105,000 $ 72,000 $ 60,000