Fair Value Measurements (Schedule of Fair Value Disclosures Measured On Nonrecurring Basis) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral Dependent Loans	$ 0	$ 12,066
Loans Nonrecurring Basis Gains (Losses)	0	(3,079)
Mortgage servicing rights	9,376	5,625
Mortgage Servicing Rights Nonrecurring Basis Gains (Losses)	1,299	(1,851)
Long-lived assets	984	348
Long Lived Assets Nonrecurring Basis Gains Losses	(276)	(5)
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral Dependent Loans	0	0
Mortgage servicing rights	0	0
Long-lived assets	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral Dependent Loans	0	0
Mortgage servicing rights	0	0
Long-lived assets	0	0
Level 3
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral Dependent Loans	0	12,066
Mortgage servicing rights	9,376	5,625
Long-lived assets	$ 984	$ 348