Fair Value Measurements (Asset and Liabilities Measured on a Nonrecurring Basis) (Details) - Nonrecurring [Member] - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent individually analyzed loans	$ 944	$ 1,720
Loan servicing rights		7,434
Total assets at fair value on a nonrecurring basis	944	9,154
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent individually analyzed loans	0	0
Loan servicing rights		0
Total assets at fair value on a nonrecurring basis	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent individually analyzed loans	0	0
Loan servicing rights		0
Total assets at fair value on a nonrecurring basis	0	0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent individually analyzed loans	944	1,720
Loan servicing rights		7,434
Total assets at fair value on a nonrecurring basis	$ 944	$ 9,154