Derivative Instruments and Hedging Activities (Impact of Derivatives on Balance Sheet) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Designated as hedging instruments
Derivative [Line Items]
Estimated fair value of derivative assets	$ 995	$ 0
Estimated fair value of derivative liabilities	46,061	16,379
Derivatives not designated as hedging instruments
Derivative [Line Items]
Estimated fair value of derivative assets	87,262	89,815
Estimated fair value of derivative liabilities	274,049	326,301
Derivatives not designated as hedging instruments \| Interest rate contracts
Derivative [Line Items]
Notional Amount	11,037,624	10,276,754
Estimated fair value of derivative assets	85,790	89,310
Estimated fair value of derivative liabilities	272,765	322,329
Derivatives not designated as hedging instruments \| Mortgage derivatives \| Mortgage derivatives - interest rate lock commitments
Derivative [Line Items]
Notional Amount	82,380	50,218
Estimated fair value of derivative assets	1,459	350
Estimated fair value of derivative liabilities	0	0
Derivatives not designated as hedging instruments \| Mortgage derivatives \| Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans
Derivative [Line Items]
Notional Amount	89,000	76,500
Estimated fair value of derivative assets	0	155
Estimated fair value of derivative liabilities	173	0
Derivatives not designated as hedging instruments \| Risk participation agreements
Derivative [Line Items]
Notional Amount	679,924	635,891
Estimated fair value of derivative assets	0	0
Estimated fair value of derivative liabilities	0	3
Derivatives not designated as hedging instruments \| Foreign exchange contracts
Derivative [Line Items]
Notional Amount	21,177	20,439
Estimated fair value of derivative assets	13	0
Estimated fair value of derivative liabilities	0	516
Derivatives not designated as hedging instruments \| Visa Derivative
Derivative [Line Items]
Notional Amount	0	0
Estimated fair value of derivative assets	0	0
Estimated fair value of derivative liabilities	1,111	3,453
Cash flow hedges
Derivative [Line Items]
Estimated fair value of derivative assets	995	0
Estimated fair value of derivative liabilities	30,044	8,286
Cash flow hedges \| Interest rate contracts
Derivative [Line Items]
Notional Amount	6,000,000	5,250,000
Estimated fair value of derivative assets	995	0
Estimated fair value of derivative liabilities	30,044	8,286
Fair value hedges
Derivative [Line Items]
Estimated fair value of derivative assets	0	0
Estimated fair value of derivative liabilities	16,017	8,093
Fair value hedges \| Interest rate contracts
Derivative [Line Items]
Notional Amount	3,338,229	2,230,232
Estimated fair value of derivative assets	0	0
Estimated fair value of derivative liabilities	$ 16,017	$ 8,093

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

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.

+ References

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- Definition

Nominal or face amount used to calculate payment on derivative.

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