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Derivative Financial Instruments - Additional Information (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Derivative [Line Items] |  |
Percentage of periodic changes in fair value qualifies for hedge accounting treatment (in percent) | 100.00% |
Hedge gain to be reclassified to interest income during next twelve months, net | $ 3,800 |
Hedge gain to be reclassified to interest expense during next twelve months, net | 14,300 |
Interest rate swaps on borrowings | Cash flow hedges | Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Notional amount | 50,000 | $ 150,000
Interest rate swaps on borrowings | Fair value hedges | Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Notional amount | 1,100,000 | 1,100,000
Interest rate swaps, collars, and floors on loan pools | Cash flow hedges | Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Notional amount | 2,000,000 | 1,900,000
Interest rate swaps on investment securities | Fair value hedges | Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Notional amount | 927,407 | 927,407
Interest rate lock commitments | Not Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Notional amount | 126,070 | 57,380
Forward mortgage loan contracts | Not Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Notional amount | 202,529 | 88,808
Forward commitments | Not Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Notional amount |  | 88,800
Customer and offsetting counterparty derivative instruments | Not Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Notional amount | $ 9,700,000 | $ 6,300,000

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- Definition Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified To Interest Expense During Next 12 Months, Net + References No definition available. + Details
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- Definition Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified To Interest Income During Next 12 Months, Net + References No definition available. + Details
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- Definition Percentage of periodic changes in fair value qualifies for hedge accounting. + References No definition available. + Details
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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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