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Fair Value Measurements (Qualitative Information About Level 3 Assets Measured at Fair Value on a Nonrecurring Basis) (Details) - Nonrecurring [Member] - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Collateral dependent individually analyzed loans $ 887 $ 1,720
Loan servicing rights   7,434
Level 3 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Collateral dependent individually analyzed loans $ 887 1,720
Loan servicing rights   $ 7,434
Minimum [Member] | Collateral Dependent Individually Analyzed Loans [Member] | Appraisals Of Collateral [Member] | Level 3 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Discount for costs to sell 10.00% 0.00%
Appraisal adjustments 0.00% 0.00%
Minimum [Member] | Loan Servicing Rights [Member] | Valuation Technique, Discounted Cash Flow [Member] | Level 3 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Discount rates   10.00%
Prepayment rates   18.00%
Maximum [Member] | Collateral Dependent Individually Analyzed Loans [Member] | Appraisals Of Collateral [Member] | Level 3 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Discount for costs to sell 10.00% 25.00%
Appraisal adjustments 0.00% 100.00%
Maximum [Member] | Loan Servicing Rights [Member] | Valuation Technique, Discounted Cash Flow [Member] | Level 3 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Discount rates   14.00%
Prepayment rates   42.00%
Weighted Average [Member] | Collateral Dependent Individually Analyzed Loans [Member] | Appraisals Of Collateral [Member] | Level 3 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Discount for costs to sell 10.00% 11.00%
Appraisal adjustments 0.00% 15.00%
Weighted Average [Member] | Loan Servicing Rights [Member] | Valuation Technique, Discounted Cash Flow [Member] | Level 3 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Discount rates   10.00%
Prepayment rates   21.00%