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Derivative Financial Instruments - Summary of Derivative Notional Amounts and Fair Values (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 1,825,000,000	$ 2,225,000,000
Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	2,357,671,000	2,336,809,000
Interest rate swap, non-forward starting | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	1,125,000,000	725,000,000
Interest rate swap, non-forward starting | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	1,120,217,000	1,096,292,000
Interest rate swap, non-forward starting | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	1,120,217,000	1,096,292,000
Interest Rate Swap, forward starting | Designated as Hedging Instrument | Cash Flow Hedge
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	200,000,000	1,000,000,000
Interest Rate Swap, forward starting | Designated as Hedging Instrument | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount		250,000,000
Risk participation agreement | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	100,957,000	130,365,000
Interest Rate Lock Commitments and Forward Contracts | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	0	1,377,000
Foreign Exchange Contract | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	16,056,000	10,739,000
Foreign Exchange Contract | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	224,000	1,744,000
Interest Rate Cap | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	500,000,000	250,000,000
Other assets | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	0	10,960,000
Other assets | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	48,594,000
Credit valuation adjustment		(54,370,000)
Other assets | Interest rate swap, non-forward starting | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	0	0
Other assets | Interest rate swap, non-forward starting | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	46,294,000	53,185,000
Other assets | Interest rate swap, non-forward starting | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	1,400,000	1,117,000
Other assets | Interest Rate Swap, forward starting | Designated as Hedging Instrument | Cash Flow Hedge
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	0	10,812,000
Other assets | Interest Rate Swap, forward starting | Designated as Hedging Instrument | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net		148,000
Other assets | Risk participation agreement | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	0
Credit valuation adjustment		0
Other assets | Interest Rate Lock Commitments and Forward Contracts | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	0
Credit valuation adjustment		(7,000)
Other assets | Foreign Exchange Contract | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange contracts	894,000	4,000
Other assets | Foreign Exchange Contract | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange contracts	6,000	57,000
Other assets | Interest Rate Cap | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	0	0
Other liabilities | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	(5,031,000)	1,149,000
Other liabilities | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	(48,800,000)	(55,869,000)
Other liabilities | Interest rate swap, non-forward starting | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	(2,330,000)	0
Other liabilities | Interest rate swap, non-forward starting | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	(1,400,000)	1,117,000
Other liabilities | Interest rate swap, non-forward starting | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	(47,384,000)	54,505,000
Other liabilities | Interest Rate Swap, forward starting | Designated as Hedging Instrument | Cash Flow Hedge
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	(1,474,000)	0
Other liabilities | Interest Rate Swap, forward starting | Designated as Hedging Instrument | Interest Rate Cap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net		0
Other liabilities | Risk participation agreement | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	(15,000)	(28,000)
Other liabilities | Interest Rate Lock Commitments and Forward Contracts | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Credit valuation adjustment	0	(17,000)
Other liabilities | Foreign Exchange Contract | Not Designated as Hedging Instrument | Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange contracts	(1,000)	202,000
Other liabilities | Foreign Exchange Contract | Not Designated as Hedging Instrument | Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange contracts	0	0
Other liabilities | Interest Rate Cap | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Fair Value, Net	$ (1,227,000)	$ 1,149,000

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
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-Section 50
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