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Securities - Schedule of Information Regarding Securities with Unrealized Losses (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, AFS and HTM | $ 442,489 | $ 1,117
Unrealized Losses, AFS and HTM | 2,441 | 5
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, AFS and HTM | 1,975,663 | 2,628,150
Unrealized Losses, AFS and HTM | 457,102 | 484,839
Total |  |
Fair Value, AFS and HTM | 2,418,152 | 2,629,267
Unrealized Losses, AFS and HTM | 459,543 | 484,844
US Treasury securities |  |
Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, AFS | 120,581 | 0
Unrealized Losses, AFS | 470 | 0
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, AFS | 0 | 172,570
Unrealized Losses, AFS | 0 | 2,215
Total |  |
Fair Value, AFS | 120,581 | 172,570
Unrealized Losses, AFS | 470 | 2,215
Government-sponsored enterprise securities |  |
Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, AFS | 0 | 0
Unrealized Losses, AFS | 0 | 0
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, AFS | 9,614 | 60,266
Unrealized Losses, AFS | 2,347 | 11,698
Total |  |
Fair Value, AFS | 9,614 | 60,266
Unrealized Losses, AFS | 2,347 | 11,698
Mortgage-backed securities |  |
Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, AFS and HTM | 317,015 | 1,117
Unrealized Losses, AFS and HTM | 1,845 | 5
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, AFS and HTM | 1,538,156 | 1,945,830
Unrealized Losses, AFS and HTM | 363,423 | 386,553
Total |  |
Fair Value, AFS and HTM | 1,855,171 | 1,946,947
Unrealized Losses, AFS and HTM | 365,268 | 386,558
Corporate bonds |  |
Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, AFS | 380 | 0
Unrealized Losses, AFS | 51 | 0
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, AFS | 13,562 | 17,008
Unrealized Losses, AFS | 438 | 917
Total |  |
Fair Value, AFS | 13,942 | 17,008
Unrealized Losses, AFS | 489 | 917
State and local governments |  |
Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, HTM | 4,513 | 0
Unrealized Losses, HTM | 75 | 0
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, HTM | 414,331 | 432,476
Unrealized Losses, HTM | 90,894 | 83,456
Total |  |
Fair Value, HTM | 418,844 | 432,476
Unrealized Losses, HTM | $ 90,969 | $ 83,456

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