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v3.23.1

Securities, HTM Securities in Continuous Unrealized Loss Position (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 USD ($) Position | Dec. 31, 2022 USD ($) Position
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 169,276 | $ 393,788
12 months or longer | 561,122 | 349,496
Total | 730,398 | 743,284
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | (4,762) | (27,889)
12 months or longer | (89,822) | (79,190)
Total | $ (94,584) | $ (107,079)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 99 | 217
12 months or longer | Position | 202 | 101
Total | Position | 301 | 318
HTM debt securities, nonaccrual | $ 0 | $ 0
Accrued interest reversed against interest income | 0 | 0
Collateral-dependent HTM debt securities | 0 | 0
AIR on HTM debt securities | $ 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
Past Due [Member] |  |
Unrealized Loss Position, Number of Positions [Abstract] |  |
HTM debt securities | $ 0 | $ 0
Federal Agency [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | 0 | 0
12 months or longer | 80,945 | 79,322
Total | 80,945 | 79,322
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | 0 | 0
12 months or longer | (19,055) | (20,678)
Total | $ (19,055) | $ (20,678)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 0 | 0
12 months or longer | Position | 4 | 4
Total | Position | 4 | 4
Mortgage-Backed [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 28,642 | $ 91,417
12 months or longer | 199,125 | 138,936
Total | 227,767 | 230,353
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | (1,033) | (9,096)
12 months or longer | (33,160) | (28,342)
Total | $ (34,193) | $ (37,438)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 7 | 21
12 months or longer | Position | 27 | 13
Total | Position | 34 | 34
Collateralized Mortgage Obligations [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 87,826 | $ 191,644
12 months or longer | 149,636 | 48,289
Total | 237,462 | 239,933
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | (3,168) | (13,863)
12 months or longer | (18,719) | (10,855)
Total | $ (21,887) | $ (24,718)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 17 | 47
12 months or longer | Position | 37 | 8
Total | Position | 54 | 55
State & Municipal [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 52,808 | $ 110,727
12 months or longer | 131,416 | 82,949
Total | 184,224 | 193,676
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | (561) | (4,930)
12 months or longer | (18,888) | (19,315)
Total | $ (19,449) | $ (24,245)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 75 | 149
12 months or longer | Position | 134 | 76
Total | Position | 209 | 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 | 70.00% | 70.00%

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