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Fair Value Measurements - Quantitative and Qualitative Information (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Quantitative information about Level 3 fair value measurements |  |
Mortgage servicing rights, fair value | $ 10,784 | $ 11,189
Securities available-for-sale, at fair value | 1,455,068 | 1,539,359
Fair Value, Inputs, Level 3 [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Mortgage servicing rights, fair value | 10,784 | 11,189
Securities available-for-sale, at fair value | 14,979 | 36,011
Asset-backed Securities |  |
Quantitative information about Level 3 fair value measurements |  |
Securities available-for-sale, at fair value | 189,753 | 201,928
States and political subdivisions |  |
Quantitative information about Level 3 fair value measurements |  |
Securities available-for-sale, at fair value | 233,506 | 226,128
Collateralized mortgage obligations |  |
Quantitative information about Level 3 fair value measurements |  |
Securities available-for-sale, at fair value | 454,106 | 533,768
Fair Value, Measurements, Recurring [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Mortgage servicing rights, fair value | 10,784 | 11,189
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Mortgage servicing rights, fair value | 10,784 | 11,189
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities |  |
Quantitative information about Level 3 fair value measurements |  |
Securities available-for-sale, at fair value | 189,753 | 201,928
Fair Value, Measurements, Recurring [Member] | Asset-backed Securities | Fair Value, Inputs, Level 3 [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Securities available-for-sale, at fair value |  | 15,012
Fair Value, Measurements, Recurring [Member] | States and political subdivisions |  |
Quantitative information about Level 3 fair value measurements |  |
Securities available-for-sale, at fair value | 233,506 | 226,128
Fair Value, Measurements, Recurring [Member] | States and political subdivisions | Fair Value, Inputs, Level 3 [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Securities available-for-sale, at fair value | 14,979 | 14,229
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations |  |
Quantitative information about Level 3 fair value measurements |  |
Securities available-for-sale, at fair value | 454,106 | 533,768
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations | Fair Value, Inputs, Level 3 [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Securities available-for-sale, at fair value |  | 6,770
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Mortgage servicing rights, fair value |  | $ 15,012
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input |  | 0.062
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input |  | 0.065
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Asset-backed Securities | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input |  | 0.063
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Mortgage servicing rights, fair value | $ 10,784 | $ 11,189
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input | 0.090 | 0.090
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input | 0.110 | 0.110
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input | 0.090 | 0.090
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Mortgage servicing rights, fair value | $ 14,979 | $ 14,229
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input | 0.028 | 0.023
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input | 0.048 | 0.058
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input | 0.044 | 0.044
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Collateralized mortgage obligations | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Mortgage servicing rights, fair value |  | $ 6,770
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Collateralized mortgage obligations | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input |  | 0.070
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Collateralized mortgage obligations | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input |  | 0.070
Fair Value, Measurements, Recurring [Member] | Measurement Input, Discount Rate | Collateralized mortgage obligations | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input |  | 0.070
Fair Value, Measurements, Recurring [Member] | Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input | 0.042 | 0.036
Fair Value, Measurements, Recurring [Member] | Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input | 0.291 | 0.273
Fair Value, Measurements, Recurring [Member] | Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights [Member] | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Servicing Asset, Measurement Input | 0.063 | 0.062
Fair Value, Measurements, Recurring [Member] | Measurement Input, Liquidity Premium | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Minimum |  |
Quantitative information about Level 3 fair value measurements |  |
Liquidity Premium (as a percent) | 0.30% | 0.30%
Fair Value, Measurements, Recurring [Member] | Measurement Input, Liquidity Premium | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Maximum |  |
Quantitative information about Level 3 fair value measurements |  |
Liquidity Premium (as a percent) | 0.50% | 0.50%
Fair Value, Measurements, Recurring [Member] | Measurement Input, Liquidity Premium | States and political subdivisions | Discounted Cash Flow Valuation Technique [Member] | Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member] |  |
Quantitative information about Level 3 fair value measurements |  |
Debt Securities, Measurement Input | 0.005 | 0.005

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- Definition Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
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- Definition Value of input used to measure investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 + Details
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