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v3.24.2.u1

Securities, Held to Maturity (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | $ 878,909 |  | $ 878,909 |  | $ 905,267
Unrealized gains | 78 |  | 78 |  | 271
Unrealized losses | (98,497) |  | (98,497) |  | (91,014)
Estimated fair value | 780,490 |  | 780,490 |  | 814,524
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 | 2,040,000 |  | 2,040,000 |  | 2,030,000
Asset Pledged as Collateral [Member] | Securities Sold under Repurchase Agreements [Member] |  |  |  |  |
Securities pledged [Abstract] |  |  |  |  |
AFS and HTM securities | 198,900 |  | 198,900 |  | 177,200
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 | (18,048) |  | (18,048) |  | (17,784)
Estimated fair value | 81,952 |  | 81,952 |  | 82,216
Mortgage-Backed, Government Sponsored Enterprises [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 218,862 |  | 218,862 |  | 228,720
Unrealized gains | 0 |  | 0 |  | 0
Unrealized losses | (34,162) |  | (34,162) |  | (31,613)
Estimated fair value | 184,700 |  | 184,700 |  | 197,107
Mortgage-Backed, U.S. Government Agency Securities [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 16,733 |  | 16,733 |  | 17,086
Unrealized gains | 1 |  | 1 |  | 3
Unrealized losses | (734) |  | (734) |  | (566)
Estimated fair value | 16,000 |  | 16,000 |  | 16,523
Collateralized Mortgage Obligations, Government-Sponsored Enterprises [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 177,833 |  | 177,833 |  | 187,457
Unrealized gains | 0 |  | 0 |  | 57
Unrealized losses | (13,515) |  | (13,515) |  | (12,021)
Estimated fair value | 164,318 |  | 164,318 |  | 175,493
Collateralized Mortgage Obligations, U.S. Government Agency Securities [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 62,490 |  | 62,490 |  | 63,878
Unrealized gains | 0 |  | 0 |  | 0
Unrealized losses | (11,533) |  | (11,533) |  | (10,908)
Estimated fair value | 50,957 |  | 50,957 |  | 52,970
State & Municipal [Member] |  |  |  |  |
Held-to-maturity securities, fair value to amortized cost [Abstract] |  |  |  |  |
Amortized cost | 302,991 |  | 302,991 |  | 308,126
Unrealized gains | 77 |  | 77 |  | 211
Unrealized losses | (20,505) |  | (20,505) |  | (18,122)
Estimated fair value | $ 282,563 |  | $ 282,563 |  | $ 290,215

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