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Summary of Significant Accounting Policies - Significant Risks and Uncertainties (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
USD ($)
Accounting Policies [Abstract]  
CARES Act, payroll taxes to be paid in 2021 and 2022 $ 4,532
CARES Act, tax benefit associated with net operating loss 2,000
CARES Act, tax refund 1,700
CARES Act, AMT tax $ 3,200