Derivative Financial Instruments - Summary of Fair Value of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Designated as Hedging Instrument
Derivative [Line Items]
Assets	$ 367	$ 18,211
Liabilities	17,145	16,912
Designated as Hedging Instrument \| Cash flow hedges \| Interest rate collars and floors on loan pools
Derivative [Line Items]
Notional	500,000	600,000
Assets	62	459
Liabilities	17,145	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	377,500	377,500
Assets	305	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	55,957	56,015
Liabilities	124,053	24,960
Not Designated as Hedging Instrument \| Interest rate lock commitments
Derivative [Line Items]
Notional	114,827	90,731
Assets	0	2,352
Liabilities	439	0
Not Designated as Hedging Instrument \| Forward mortgage loan contracts
Derivative [Line Items]
Notional	114,543	126,107
Assets	3,162	242
Liabilities	0	0
Not Designated as Hedging Instrument \| Customer interest rate swaps
Derivative [Line Items]
Notional	4,802,134	2,433,177
Assets	19,911	52,439
Liabilities	117,852	11,658
Not Designated as Hedging Instrument \| Counterparty interest rate swaps
Derivative [Line Items]
Notional	4,802,134	2,433,177
Assets	32,527	583
Liabilities	5,438	12,956
Not Designated as Hedging Instrument \| Customer foreign currency forward contracts
Derivative [Line Items]
Notional	10,531	10,292
Assets	357	399
Liabilities	0	0
Not Designated as Hedging Instrument \| Counterparty foreign currency forward contracts
Derivative [Line Items]
Notional	10,458	10,205
Assets	0	0
Liabilities	$ 324	$ 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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No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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