Derivative Financial Instruments - Summary of Fair Value of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Designated as Hedging Instrument
Derivative [Line Items]
Assets	$ 11,764	$ 18,211
Liabilities	47,859	16,912
Designated as Hedging Instrument \| Cash flow hedges \| Interest rate collars and floors on loan pools
Derivative [Line Items]
Notional	1,900,000	600,000
Assets	11,764	459
Liabilities	47,859	2,173
Designated as Hedging Instrument \| Cash flow hedges \| Interest rate swaps on borrowings
Derivative [Line Items]
Notional	150,000	150,000
Assets	0	4,316
Liabilities	0	0
Designated as Hedging Instrument \| Fair value hedges \| Interest rate swaps on borrowings
Derivative [Line Items]
Notional	300,000	377,500
Assets	0	2,475
Liabilities	0	96
Designated as Hedging Instrument \| Fair value hedges \| Interest rate swaps on investment securities
Derivative [Line Items]
Notional	909,957	909,957
Assets	0	10,961
Liabilities	0	14,643
Not Designated as Hedging Instrument
Derivative [Line Items]
Assets	157,237	56,015
Liabilities	332,845	24,960
Not Designated as Hedging Instrument \| Interest rate lock commitments
Derivative [Line Items]
Notional	21,401	90,731
Assets	93	2,352
Liabilities	0	0
Not Designated as Hedging Instrument \| Forward mortgage loan contracts
Derivative [Line Items]
Notional	30,330	126,107
Assets	32	242
Liabilities	0	0
Not Designated as Hedging Instrument \| Customer interest rate swaps
Derivative [Line Items]
Notional	5,220,363	2,433,177
Assets	5,676	52,439
Liabilities	326,924	11,658
Not Designated as Hedging Instrument \| Counterparty interest rate swaps
Derivative [Line Items]
Notional	5,220,363	2,433,177
Assets	151,111	583
Liabilities	5,711	12,956
Not Designated as Hedging Instrument \| Customer foreign currency forward contracts
Derivative [Line Items]
Notional	8,341	10,292
Assets	253	399
Liabilities	42	0
Not Designated as Hedging Instrument \| Counterparty foreign currency forward contracts
Derivative [Line Items]
Notional	8,297	10,205
Assets	72	0
Liabilities	$ 168	$ 346

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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