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Fair Value of Financial Instruments - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 $ 54 $ 0 $ 42,671 $ 130  
Level III          
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Total assets $ 158,800   $ 158,800   $ 153,300
Percentage of Level III assets to financial instruments measured at fair value 13.20%   13.20%   14.70%
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3     $ 42,700