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Derivative Financial Instruments - Summary of Fair Value of Derivative Financial Instruments (Details) - USD ($) | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Assets | $ 13,390,000 | $ 4,155,000
Liabilities | 5,386,000 | 11,196,000
Designated as Hedging Instrument | Cash flow hedges | Interest rate swaps, collars, and floors on loan pools |  |
Derivative [Line Items] |  |
Notional | 1,900,000,000 | 1,900,000,000
Assets | 9,883,000 | 3,490,000
Liabilities | 5,386,000 | 11,196,000
Designated as Hedging Instrument | Cash flow hedges | Interest rate swaps on borrowings |  |
Derivative [Line Items] |  |
Notional | 150,000,000 | 150,000,000
Assets | 0 | 0
Liabilities | 0 | 0
Designated as Hedging Instrument | Fair value hedges | Interest rate swaps on borrowings |  |
Derivative [Line Items] |  |
Notional | 1,100,000,000 | 1,100,000,000
Assets | 3,507,000 | 665,000
Liabilities | 0 | 0
Designated as Hedging Instrument | Fair value hedges | Interest rate swaps on investment securities |  |
Derivative [Line Items] |  |
Notional | 927,407,000 | 927,407,000
Assets | 0 | 0
Liabilities | 0 | 0
Not Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Assets | 124,908,000 | 142,323,000
Liabilities | 196,635,000 | 233,117,000
Not Designated as Hedging Instrument | Interest rate lock commitments |  |
Derivative [Line Items] |  |
Notional | 103,335,000 | 57,380,000
Assets | 727,000 | 0
Liabilities | 0 | 166,000
Not Designated as Hedging Instrument | Forward mortgage loan contracts |  |
Derivative [Line Items] |  |
Notional | 116,287,000 | 88,808,000
Assets | 0 | 807,000
Liabilities | 468,000 | 0
Not Designated as Hedging Instrument | Customer interest rate swaps |  |
Derivative [Line Items] |  |
Notional | 6,322,143,000 | 6,255,123,000
Assets | 34,103,000 | 12,827,000
Liabilities | 161,529,000 | 219,926,000
Not Designated as Hedging Instrument | Counterparty interest rate swaps |  |
Derivative [Line Items] |  |
Notional | 6,322,143,000 | 6,255,123,000
Assets | 89,572,000 | 128,469,000
Liabilities | 34,285,000 | 12,902,000
Not Designated as Hedging Instrument | Customer foreign currency contracts |  |
Derivative [Line Items] |  |
Notional | 14,703,000 | 10,265,000
Assets | 384,000 | 28,000
Liabilities | 272,000 | 121,000
Not Designated as Hedging Instrument | Counterparty foreign currency contracts |  |
Derivative [Line Items] |  |
Notional | 15,968,000 | 10,093,000
Assets | 122,000 | 192,000
Liabilities | $ 81,000 | $ 2,000

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