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Derivative Financial Instruments - Weighted-average Rates for Interest Rate Swaps (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Derivative [Line Items] |  |
Notional Amount | $ 1,052,236,000 | $ 767,070,000
Hedging Instrument | Interest Rate Swaps | Fair value hedges |  |
Derivative [Line Items] |  |
Notional Amount | $ 43,940,000 | $ 0
Remaining Maturity (in years) | 7 years 7 months 13 days | 0 years
Hedging Instrument | Interest Rate Swaps | Received | Fair value hedges |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 4.33% | 0.00%
Hedging Instrument | Interest Rate Swaps | Paid | Fair value hedges |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 3.78% | 0.00%
Non-Hedging | Financial Institution | Interest Rate Swaps |  |
Derivative [Line Items] |  |
Notional Amount | $ 453,319,000 | $ 358,527,000
Remaining Maturity (in years) | 3 years 3 months 21 days | 3 years 4 months 9 days
Non-Hedging | Financial Institution | Interest Rate Swaps | Received |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 6.75% | 7.67%
Non-Hedging | Financial Institution | Interest Rate Swaps | Paid |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 5.48% | 5.04%
Non-Hedging | Financial Institution | Interest Rate Cap |  |
Derivative [Line Items] |  |
Notional Amount | $ 25,000,000 | $ 0
Remaining Maturity (in years) | 1 year 10 months 20 days | 0 years
Non-Hedging | Financial Institution | Interest Rate Cap | Received |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 4.50% | 0.00%
Non-Hedging | Financial Institution | Interest Rate Cap | Paid |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 0.00% | 0.00%
Non-Hedging | Customer | Interest Rate Swaps |  |
Derivative [Line Items] |  |
Notional Amount | $ 453,319,000 | $ 358,527,000
Remaining Maturity (in years) | 3 years 3 months 21 days | 3 years 4 months 9 days
Non-Hedging | Customer | Interest Rate Swaps | Received |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 5.48% | 5.04%
Non-Hedging | Customer | Interest Rate Swaps | Paid |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 6.75% | 7.67%
Non-Hedging | Customer | Interest Rate Cap |  |
Derivative [Line Items] |  |
Notional Amount | $ 25,000,000 | $ 0
Remaining Maturity (in years) | 1 year 10 months 20 days | 0 years
Non-Hedging | Customer | Interest Rate Cap | Received |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 0.00% | 0.00%
Non-Hedging | Customer | Interest Rate Cap | Paid |  |
Derivative [Line Items] |  |
Weighted-Average Interest Rate | 4.50% | 0.00%

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 20 -Name Accounting Standards Codification -Section 25 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480682/815-20-25-6A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 181 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-181 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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