Derivative Instruments - Impact Of Derivatives On Balance Sheet (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Designated as Hedging Instrument
Derivative [Line Items]
Fair value of derivative assets	$ 0	$ 22,004,000
Fair value of derivative liabilities	16,379,000	20,395,000
Not Designated As Hedging Instruments
Derivative [Line Items]
Fair value of derivative assets	89,815,000	169,704,000
Fair value of derivative liabilities	326,301,000	78,207,000
Not Designated As Hedging Instruments \| Interest rate contracts
Derivative [Line Items]
Notional Amount	10,276,754,000	9,653,600,000
Fair value of derivative assets	89,310,000	167,560,000
Fair value of derivative liabilities	322,329,000	74,514,000
Not Designated As Hedging Instruments \| Mortgage derivatives \| Mortgage derivatives - interest rate lock commitments
Derivative [Line Items]
Notional Amount	50,218,000	99,006,000
Fair value of derivative assets	350,000	2,105,000
Fair value of derivative liabilities	0	0
Not Designated As Hedging Instruments \| Mortgage derivatives \| Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans
Derivative [Line Items]
Notional Amount	76,500,000	105,500,000
Fair value of derivative assets	155,000	0
Fair value of derivative liabilities	0	122,000
Not Designated As Hedging Instruments \| Risk participation agreements
Derivative [Line Items]
Notional Amount	635,891,000	374,214,000
Fair value of derivative assets	0	0
Fair value of derivative liabilities	3,000	36,000
Not Designated As Hedging Instruments \| Foreign exchange contracts
Derivative [Line Items]
Notional Amount	20,439,000	22,387,000
Fair value of derivative assets	0	39,000
Fair value of derivative liabilities	516,000	0
Not Designated As Hedging Instruments \| Visa Derivative Liability
Derivative [Line Items]
Notional Amount	0	0
Fair value of derivative assets	0	0
Fair value of derivative liabilities	3,453,000	3,535,000
Cash Flow Hedging
Derivative [Line Items]
Fair value of derivative assets	0	22,004,000
Fair value of derivative liabilities	8,286,000	20,395,000
Cash Flow Hedging \| Interest rate contracts
Derivative [Line Items]
Notional Amount	5,250,000,000	3,600,000,000
Fair value of derivative assets	0	22,004,000
Fair value of derivative liabilities	8,286,000	20,395,000
Fair Value Hedging
Derivative [Line Items]
Fair value of derivative assets	0	0
Fair value of derivative liabilities	8,093,000	0
Fair Value Hedging \| Interest rate contracts
Derivative [Line Items]
Notional Amount	2,230,232,000	0
Fair value of derivative assets	0	0
Fair value of derivative liabilities	$ 8,093,000	$ 0

Fair value, after offset of derivative liability, of 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, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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- Definition

Fair value, after offset of derivative asset, of 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, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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