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Fair Value Measurement of Assets and Liabilities - Additional Information (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Collateral dependent loans amortized cost $ 104,300  
Specific valuation allowance allocations $ 64,600  
Valuation of loan servicing rights, prepayment rate 15.40%  
Valuation of loan servicing rights, discount rate 9.10%  
Minimum    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Discount adjustment of the appraisals of foreclosed assets 1.30%  
Maximum    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Discount adjustment of the appraisals of foreclosed assets 7.10%  
Fair Value | Non-recurring fair value measurements    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Reported net carrying amount of collateral dependent loans $ 39,700  
Loan servicing rights $ 158 $ 15,603