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v3.25.3

Securities, Held to Maturity (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | $ 771,474 |  | $ 771,474 |  | $ 842,921
Unrealized gains | 101 |  | 101 |  | 42
Unrealized losses | (65,284) |  | (65,284) |  | (93,018)
Estimated fair value | 706,291 |  | 706,291 |  | 749,945
Transactions of HTM securities [Abstract] |  |  |  |  |
Gains from calls on HTM securities | 0 | $ 0 | 0 | $ 0 |
Asset Pledged as Collateral [Member] | Public Deposits or Other Purposes [Member] |  |  |  |  |
Securities pledged [Abstract] |  |  |  |  |
AFS and HTM securities | 1,820,000 |  | 1,820,000 |  | 1,600,000
Asset Pledged as Collateral [Member] | Securities Sold under Repurchase Agreements [Member] |  |  |  |  |
Securities pledged [Abstract] |  |  |  |  |
AFS and HTM securities | 213,200 |  | 213,200 |  | 234,200
Federal Agency [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 100,000 |  | 100,000 |  | 100,000
Unrealized gains | 0 |  | 0 |  | 0
Unrealized losses | (11,512) |  | (11,512) |  | (16,656)
Estimated fair value | 88,488 |  | 88,488 |  | 83,344
Mortgage-Backed, Government Sponsored Enterprises [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 193,775 |  | 193,775 |  | 208,579
Unrealized gains | 0 |  | 0 |  | 0
Unrealized losses | (24,801) |  | (24,801) |  | (34,349)
Estimated fair value | 168,974 |  | 168,974 |  | 174,230
Mortgage-Backed, U.S. Government Agency Securities [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 13,665 |  | 13,665 |  | 15,611
Unrealized gains | 1 |  | 1 |  | 1
Unrealized losses | (122) |  | (122) |  | (516)
Estimated fair value | 13,544 |  | 13,544 |  | 15,096
Collateralized Mortgage Obligations, Government-Sponsored Enterprises [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 141,398 |  | 141,398 |  | 168,018
Unrealized gains | 84 |  | 84 |  | 0
Unrealized losses | (6,099) |  | (6,099) |  | (11,554)
Estimated fair value | 135,383 |  | 135,383 |  | 156,464
Collateralized Mortgage Obligations, U.S. Government Agency Securities [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 57,951 |  | 57,951 |  | 60,906
Unrealized gains | 0 |  | 0 |  | 0
Unrealized losses | (9,746) |  | (9,746) |  | (11,245)
Estimated fair value | 48,205 |  | 48,205 |  | 49,661
State & Municipal [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 264,685 |  | 264,685 |  | 289,807
Unrealized gains | 16 |  | 16 |  | 41
Unrealized losses | (13,004) |  | (13,004) |  | (18,698)
Estimated fair value | $ 251,697 |  | $ 251,697 |  | $ 271,150

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