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Derivatives and Hedging Activities - Schedule of Customer Related Derivative Positions (Details) $ in Thousands | Sep. 30, 2025 USD ($) derivative | Dec. 31, 2024 USD ($) derivative
--- | --- | ---
Receive fixed, pay variable |  |
Derivatives and Hedging Activities |  |
Total | $ 3,539,080 | $ 1,672,948
Pay fixed, receive variable |  |
Derivatives and Hedging Activities |  |
Total | 3,543,667 | 1,672,948
Risk participation-out agreements |  |
Derivatives and Hedging Activities |  |
Total | 648,328 | 539,731
Risk participation-in agreements |  |
Derivatives and Hedging Activities |  |
Total | 169,155 | 102,198
Foreign exchange contracts | Buys foreign currency, sells U.S. currency |  |
Derivatives and Hedging Activities |  |
Total | 3,385 | 5,849
Foreign exchange contracts | Sells foreign currency, buys U.S. currency |  |
Derivatives and Hedging Activities |  |
Total | $ 3,701 | $ 5,408
Derivatives not designed as hedging instruments | Receive fixed, pay variable |  |
Derivatives and Hedging Activities |  |
Number of Positions | derivative | 314 | 149
Notional Amount Maturing, Less than 1 year | $ 372,806 | $ 153,724
Notional Amount Maturing, Less than 2 years | 339,441 | 57,535
Notional Amount Maturing, Less than 3 years | 370,947 | 237,601
Notional Amount Maturing, Less than 4 years | 597,025 | 93,027
Notional Amount Maturing, Thereafter | 1,858,861 | 1,131,061
Total | 3,539,080 | 1,672,948
Fair Value | $ 57,253 | $ 95,720
Derivatives not designed as hedging instruments | Pay fixed, receive variable |  |
Derivatives and Hedging Activities |  |
Number of Positions | derivative | 315 | 149
Notional Amount Maturing, Less than 1 year | $ 372,806 | $ 153,724
Notional Amount Maturing, Less than 2 years | 339,441 | 57,535
Notional Amount Maturing, Less than 3 years | 370,947 | 237,601
Notional Amount Maturing, Less than 4 years | 597,025 | 93,027
Notional Amount Maturing, Thereafter | 1,863,448 | 1,131,061
Total | 3,543,667 | 1,672,948
Fair Value | $ 57,078 | $ 95,720
Derivatives not designed as hedging instruments | Risk participation-out agreements |  |
Derivatives and Hedging Activities |  |
Number of Positions | derivative | 88 | 68
Notional Amount Maturing, Less than 1 year | $ 47,231 | $ 33,305
Notional Amount Maturing, Less than 2 years | 58,564 | 5,847
Notional Amount Maturing, Less than 3 years | 41,607 | 59,464
Notional Amount Maturing, Less than 4 years | 2,926 | 52,828
Notional Amount Maturing, Thereafter | 498,000 | 388,287
Total | 648,328 | 539,731
Fair Value | $ 723 | $ 495
Derivatives not designed as hedging instruments | Risk participation-in agreements |  |
Derivatives and Hedging Activities |  |
Number of Positions | derivative | 26 | 10
Notional Amount Maturing, Less than 1 year | $ 0 | $ 0
Notional Amount Maturing, Less than 2 years | 33,560 | 22,518
Notional Amount Maturing, Less than 3 years | 33,774 | 3,506
Notional Amount Maturing, Less than 4 years | 8,292 | 25,346
Notional Amount Maturing, Thereafter | 93,529 | 50,828
Total | 169,155 | 102,198
Fair Value | $ 206 | $ 137
Derivatives not designed as hedging instruments | Foreign exchange contracts | Buys foreign currency, sells U.S. currency |  |
Derivatives and Hedging Activities |  |
Number of Positions | derivative | 14 | 26
Notional Amount Maturing, Less than 1 year | $ 3,385 | $ 5,849
Notional Amount Maturing, Less than 2 years | 0 | 0
Notional Amount Maturing, Less than 3 years | 0 | 0
Notional Amount Maturing, Less than 4 years | 0 | 0
Notional Amount Maturing, Thereafter | 0 | 0
Total | 3,385 | 5,849
Fair Value | $ 407 | $ 459
Derivatives not designed as hedging instruments | Foreign exchange contracts | Sells foreign currency, buys U.S. currency |  |
Derivatives and Hedging Activities |  |
Number of Positions | derivative | 14 | 24
Notional Amount Maturing, Less than 1 year | $ 3,701 | $ 5,408
Notional Amount Maturing, Less than 2 years | 0 | 0
Notional Amount Maturing, Less than 3 years | 0 | 0
Notional Amount Maturing, Less than 4 years | 0 | 0
Notional Amount Maturing, Thereafter | 0 | 0
Total | 3,701 | 5,408
Fair Value | $ 381 | $ 482

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