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Derivative Financial Instruments - Summary of Fair Value of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Designated as Hedging Instrument
Derivative [Line Items]
Assets	$ 3,446	$ 18,211
Liabilities	52,171	16,912
Designated as Hedging Instrument | Cash flow hedges | Interest rate collars and floors on loan pools
Derivative [Line Items]
Notional	1,500,000	600,000
Assets	3,446	459
Liabilities	52,171	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	327,500	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	145,132	56,015
Liabilities	347,387	24,960
Not Designated as Hedging Instrument | Interest rate lock commitments
Derivative [Line Items]
Notional	51,177	90,731
Assets	0	2,352
Liabilities	512	0
Not Designated as Hedging Instrument | Forward mortgage loan contracts
Derivative [Line Items]
Notional	71,000	126,107
Assets	2,370	242
Liabilities	0	0
Not Designated as Hedging Instrument | Customer interest rate swaps
Derivative [Line Items]
Notional	5,062,757	2,433,177
Assets	1,506	52,439
Liabilities	344,676	11,658
Not Designated as Hedging Instrument | Counterparty interest rate swaps
Derivative [Line Items]
Notional	5,062,757	2,433,177
Assets	140,440	583
Liabilities	1,513	12,956
Not Designated as Hedging Instrument | Customer foreign currency forward contracts
Derivative [Line Items]
Notional	12,533	10,292
Assets	107	399
Liabilities	677	0
Not Designated as Hedging Instrument | Counterparty foreign currency forward contracts
Derivative [Line Items]
Notional	13,281	10,205
Assets	709	0
Liabilities	$ 9	$ 346

X

- Definition

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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
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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.

+ References

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

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+ References

No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
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