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Derivative and Hedging Activities, Derivative Instruments (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Notional Amount | $ 450,000 |
Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Subject to Master Netting Arrangement, before Offset | 63,863 | $ 87,075
Derivatives (trading and other liabilities), fair value | 32,396 | 18,767
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset | 19,037 | 18,234
Derivative Liability, Subject to Master Netting Arrangement, Asset Offset | 19,037 | 18,234
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset | 8,572 | 35,855
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset | 8,631 | 0
Derivative Asset | 36,254 | 32,985
Derivative Liability | 4,727 | 533
Other Assets [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Subject to Master Netting Arrangement, before Offset | 121,367 | 123,723
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset | 19,037 | 18,234
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset | 8,572 | 35,855
Derivative Asset | 93,758 | 69,634
Other Liabilities [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivatives (trading and other liabilities), fair value | 148,404 | 202,958
Derivative Liability, Subject to Master Netting Arrangement, Asset Offset | 19,037 | 18,234
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset | 8,631 | 0
Derivative Liability | 120,736 | 184,724
Designated as Hedging Instrument | Other Assets [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Subject to Master Netting Arrangement, before Offset | 20,285 | 8,707
Designated as Hedging Instrument | Other Assets [Member] | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Notional Amount | 3,100,000 | 2,300,000
Designated as Hedging Instrument | Other Assets [Member] | Foreign Exchange Forward [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Notional Amount | 277,977 | 231,566
Designated as Hedging Instrument | Other Liabilities [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivatives (trading and other liabilities), fair value | 780 | 3,876
Designated as Hedging Instrument | Other Liabilities [Member] | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Liability, Notional Amount | 200,000 | 550,000
Designated as Hedging Instrument | Other Liabilities [Member] | Foreign Exchange Forward [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Liability, Notional Amount | 104,064 | 189,212
Not Designated as Hedging Instrument [Member] | Other Assets [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Subject to Master Netting Arrangement, before Offset | 101,082 | 115,016
Not Designated as Hedging Instrument [Member] | Other Assets [Member] | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Notional Amount | 3,862,763 | 3,603,513
Not Designated as Hedging Instrument [Member] | Other Assets [Member] | Foreign Exchange Forward [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Notional Amount | 108,995 | 87,526
Not Designated as Hedging Instrument [Member] | Other Assets [Member] | Interest Rate Lock Commitments [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Notional Amount | 59,674 | 29,490
Not Designated as Hedging Instrument [Member] | Other Liabilities [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivatives (trading and other liabilities), fair value | 147,624 | 199,082
Not Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Liability, Notional Amount | 6,526,977 | 6,528,471
Not Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Foreign Exchange Forward [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Liability, Notional Amount | 112,825 | 135,654
Not Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Forward Commitments to Sell Residential Mortgage Loans |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Liability, Notional Amount | 121,000 | 51,500
Fair Value, Inputs, Level 2 |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset, Notional Amount | 7,000 |
Fair Value, Measurements, Recurring | Interest Rate Lock Commitments [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 822 | 439
Fair Value, Measurements, Recurring | Designated as Hedging Instrument | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 20,010 | 8,075
Derivative Liability | 91 | 930
Fair Value, Measurements, Recurring | Not Designated as Hedging Instrument [Member] | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 95,396 | 111,623
Derivative Liability | 142,560 | 195,662
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Foreign Exchange Forward [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 4,865 | 2,954
Derivative Liability | 4,579 | 2,746
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Interest Rate Lock Commitments [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 20,010 | 8,075
Derivative Liability | 91 | 930
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Foreign Exchange Forward [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 275 | 632
Derivative Liability | 689 | 2,946
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Not Designated as Hedging Instrument [Member] | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 95,396 | 111,623
Derivative Liability | 142,560 | 195,662
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Interest Rate Lock Commitments [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 822 | 439
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Forward Commitments to Sell Residential Mortgage Loans |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Liability |  | 673
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Designated as Hedging Instrument | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 0 | 0
Derivative Liability | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Not Designated as Hedging Instrument [Member] | Interest Rate Contract |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 0 | 0
Derivative Liability | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Not Designated as Hedging Instrument [Member] | Interest Rate Lock Commitments [Member] |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Asset | 822 | $ 439
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Not Designated as Hedging Instrument [Member] | Forward Commitments to Sell Residential Mortgage Loans |  |
Derivative Instrument Detail [Abstract] |  |
Derivative Liability | $ 485 |

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