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v3.23.3

Securities, HTM Securities in Continuous Unrealized Loss Position (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) Position | Sep. 30, 2023 USD ($) Position | Dec. 31, 2022 USD ($) Position
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | $ 45,037 | $ 45,037 | $ 393,788
12 months or longer | 649,756 | 649,756 | 349,496
Total | 694,793 | 694,793 | 743,284
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | (2,189) | (2,189) | (27,889)
12 months or longer | (128,345) | (128,345) | (79,190)
Total | $ (130,534) | $ (130,534) | $ (107,079)
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 34 | 34 | 217
12 months or longer | Position | 283 | 283 | 101
Total | Position | 317 | 317 | 318
HTM debt securities, nonaccrual | $ 0 | $ 0 | $ 0
Accrued interest reversed against interest income | 0 | 0 | 0
Collateral-dependent HTM debt securities | 0 | 0 | 0
AIR on HTM debt securities | $ 3,800 | $ 3,800 | $ 3,800
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Other Assets | Other Assets | Other Assets
Past Due [Member] |  |  |
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
HTM debt securities | $ 0 | $ 0 | $ 0
Federal Agency [Member] |  |  |
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | 0 | 0 | 0
12 months or longer | 76,997 | 76,997 | 79,322
Total | 76,997 | 76,997 | 79,322
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | 0 | 0 | 0
12 months or longer | (23,003) | (23,003) | (20,678)
Total | $ (23,003) | $ (23,003) | $ (20,678)
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 0 | 0 | 0
12 months or longer | Position | 4 | 4 | 4
Total | Position | 4 | 4 | 4
Mortgage-Backed [Member] |  |  |
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | $ 11,610 | $ 11,610 | $ 91,417
12 months or longer | 192,576 | 192,576 | 138,936
Total | 204,186 | 204,186 | 230,353
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | (975) | (975) | (9,096)
12 months or longer | (45,419) | (45,419) | (28,342)
Total | $ (46,394) | $ (46,394) | $ (37,438)
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 1 | 1 | 21
12 months or longer | Position | 33 | 33 | 13
Total | Position | 34 | 34 | 34
Collateralized Mortgage Obligations [Member] |  |  |
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | $ 8,834 | $ 8,834 | $ 191,644
12 months or longer | 216,125 | 216,125 | 48,289
Total | 224,959 | 224,959 | 239,933
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | (134) | (134) | (13,863)
12 months or longer | (31,687) | (31,687) | (10,855)
Total | $ (31,821) | $ (31,821) | $ (24,718)
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 2 | 2 | 47
12 months or longer | Position | 53 | 53 | 8
Total | Position | 55 | 55 | 55
State & Municipal [Member] |  |  |
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | $ 24,593 | $ 24,593 | $ 110,727
12 months or longer | 164,058 | 164,058 | 82,949
Total | 188,651 | 188,651 | 193,676
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | (1,080) | (1,080) | (4,930)
12 months or longer | (28,236) | (28,236) | (19,315)
Total | $ (29,316) | $ (29,316) | $ (24,245)
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 31 | 31 | 149
12 months or longer | Position | 193 | 193 | 76
Total | Position | 224 | 224 | 225
US Government Agencies Debt Securities and US Government-sponsored Enterprises Debt Securities [Member] |  |  |
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Held-to-maturity debt securities, percentage |  | 66.00% | 70.00%

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