Derivative Instruments and Hedging Activities (Impact of Derivatives on Balance Sheet) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Designated as hedging instruments
Derivative [Line Items]
Estimated fair value of derivative assets	$ 0	$ 22,004
Estimated fair value of derivative liabilities	12,831	20,395
Derivatives not designated as hedging instruments
Derivative [Line Items]
Estimated fair value of derivative assets	82,087	169,704
Estimated fair value of derivative liabilities	327,323	78,207
Derivatives not designated as hedging instruments \| Interest rate contracts
Derivative [Line Items]
Notional Amount	9,256,575	9,653,600
Estimated fair value of derivative assets	77,220	167,560
Estimated fair value of derivative liabilities	325,354	74,514
Derivatives not designated as hedging instruments \| Mortgage derivatives \| Mortgage derivatives - interest rate lock commitments
Derivative [Line Items]
Notional Amount	88,598	99,006
Estimated fair value of derivative assets	0	2,105
Estimated fair value of derivative liabilities	785	0
Derivatives not designated as hedging instruments \| Mortgage derivatives \| Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans
Derivative [Line Items]
Notional Amount	108,000	105,500
Estimated fair value of derivative assets	4,347	0
Estimated fair value of derivative liabilities	0	122
Derivatives not designated as hedging instruments \| Risk participation agreements
Derivative [Line Items]
Notional Amount	472,751	374,214
Estimated fair value of derivative assets	0	0
Estimated fair value of derivative liabilities	0	36
Derivatives not designated as hedging instruments \| Foreign exchange contracts
Derivative [Line Items]
Notional Amount	17,862	22,387
Estimated fair value of derivative assets	520	39
Estimated fair value of derivative liabilities	0	0
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	1,184	3,535
Cash flow hedges
Derivative [Line Items]
Estimated fair value of derivative assets	0	22,004
Estimated fair value of derivative liabilities	8,571	20,395
Cash flow hedges \| Interest rate contracts
Derivative [Line Items]
Notional Amount	5,250,000	3,600,000
Estimated fair value of derivative assets	0	22,004
Estimated fair value of derivative liabilities	8,571	20,395
Fair value hedges
Derivative [Line Items]
Estimated fair value of derivative assets	0	0
Estimated fair value of derivative liabilities	4,260	0
Fair value hedges \| Interest rate contracts
Derivative [Line Items]
Notional Amount	1,766,496	0
Estimated fair value of derivative assets	0	0
Estimated fair value of derivative liabilities	$ 4,260	$ 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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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.

+ References

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