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Disclosures about Fair Value of Assets and Liabilities - Qualitative Information about Unobservable Inputs Used in Recurring and Nonrecurring Level 3 Fair Value Measurements, Other than Goodwill (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) consecutive_Payment mo yr	Dec. 31, 2020 USD ($) consecutive_Payment
Measurement Input, Discount Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.10
Significant Unobservable Inputs (Level 3) | State and municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value | $	$ 120,464
Valuation Technique	Grid pricing
Unobservable Inputs	Maturity date,Weighted average coupon
Significant Unobservable Inputs (Level 3) | Corporate notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value | $	$ 5,032
Valuation Technique	Grid pricing
Unobservable Inputs	Maturity date,Weighted average coupon
Significant Unobservable Inputs (Level 3) | Measurement Input, Weighted Average Coupon | State and municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.0205
Significant Unobservable Inputs (Level 3) | Measurement Input, Weighted Average Coupon | Corporate notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.0397
Significant Unobservable Inputs (Level 3) | Collateral dependent loans
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value | $	$ 15,176	$ 13,123
Valuation Technique	Collateral based measurement	Collateral based measurement
Unobservable Inputs	Discount to reflect current market conditions and ultimate collectability	Discount to reflect current market conditions and ultimate collectability
Significant Unobservable Inputs (Level 3) | Mortgage servicing rights
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value | $	$ 15,186	$ 12,472
Valuation Technique	Discounted cash flows	Discounted cash flows
Unobservable Inputs	Discount rate, Constant prepayment rate, Probability of default	Discount rate, Constant prepayment rate, Probability of default
Minimum | Significant Unobservable Inputs (Level 3) | Measurement Input, Maturity | State and municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs | mo	0.01
Minimum | Significant Unobservable Inputs (Level 3) | Measurement Input, Maturity | Corporate notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs | yr	0.09
Minimum | Significant Unobservable Inputs (Level 3) | Collateral dependent loans
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount to reflect current market conditions and ultimate collectability	0.00%	0.00%
Minimum | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Measurement Input, Discount Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.080	0.078
Minimum | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Measurement Input, Constant Prepayment Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.084	0.115
Minimum | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Measurement Input, Default Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.000	0.000
Maximum | Significant Unobservable Inputs (Level 3) | Measurement Input, Maturity | State and municipal
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs | yr	0.16
Maximum | Significant Unobservable Inputs (Level 3) | Measurement Input, Maturity | Corporate notes
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs | yr	0.17
Maximum | Significant Unobservable Inputs (Level 3) | Collateral dependent loans
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount to reflect current market conditions and ultimate collectability	54.00%	72.00%
Maximum | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Measurement Input, Discount Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.080	0.078
Maximum | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Measurement Input, Constant Prepayment Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.146	0.209
Maximum | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Measurement Input, Default Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.020	0.010
Weighted Average | Significant Unobservable Inputs (Level 3) | Collateral dependent loans
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount to reflect current market conditions and ultimate collectability	4.80%	12.40%
Weighted Average | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Measurement Input, Discount Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.080	0.078
Weighted Average | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Measurement Input, Constant Prepayment Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.116	0.175
Weighted Average | Significant Unobservable Inputs (Level 3) | Mortgage servicing rights | Measurement Input, Default Rate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Unobservable Inputs	0.004	0.008

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