Fair Value, Assets Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:	$ 7,328	$ 25,160
Servicing rights, net	3,057	3,922
Allowance for Loan Losses Allocated	6,760	20,771
Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing rights, net	3,057
Total	3,627	4,389
Total losses for the period ended	225
Residential real estate: | Closed-end 1-4 family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:		643
Allowance for Loan Losses Allocated		17
Residential real estate: | Closed-end 1-4 family | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:		626
Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:	7,328	24,517
Allowance for Loan Losses Allocated	6,760	20,754
Commercial and industrial | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:	570	3,763
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing rights, net	0
Total	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential real estate: | Closed-end 1-4 family | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial and industrial | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing rights, net	0
Total	0	3,650
Significant Other Observable Inputs (Level 2) | Residential real estate: | Closed-end 1-4 family | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:		0
Significant Other Observable Inputs (Level 2) | Commercial and industrial | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:	0	3,650
Significant Unobservable Inputs (Level 3) | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing rights, net	3,057
Total	3,627	739
Significant Unobservable Inputs (Level 3) | Residential real estate: | Closed-end 1-4 family | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:		626
Significant Unobservable Inputs (Level 3) | Commercial and industrial | Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
With an allowance recorded:	$ 570	$ 113