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v3.23.2

Securities, AFS Securities in Continuous Unrealized Loss Position (Details) $ in Thousands | Jun. 30, 2023 USD ($) Position | Dec. 31, 2022 USD ($) Position
--- | --- | ---
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 89,993 | $ 509,788
12 months or longer | 1,360,117 | 1,012,964
Total | 1,450,110 | 1,522,752
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | (4,793) | (36,681)
12 months or longer | (213,497) | (180,014)
Total | $ (218,290) | $ (216,695)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 68 | 245
12 months or longer | Position | 343 | 170
Total | Position | 411 | 415
AIR on AFS debt securities | $ 4,000 | $ 4,200
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Other Assets | Other Assets
U.S. Treasury [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 9,763 | $ 55,616
12 months or longer | 112,234 | 66,042
Total | 121,997 | 121,658
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | (182) | (3,864)
12 months or longer | (10,840) | (7,369)
Total | $ (11,022) | $ (11,233)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 1 | 5
12 months or longer | Position | 7 | 3
Total | Position | 8 | 8
Federal Agency [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 0 | $ 0
12 months or longer | 208,653 | 206,419
Total | 208,653 | 206,419
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | 0 | 0
12 months or longer | (39,748) | (42,000)
Total | $ (39,748) | $ (42,000)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 0 | 0
12 months or longer | Position | 16 | 16
Total | Position | 16 | 16
State & Municipal [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 0 | $ 3,679
12 months or longer | 83,404 | 78,395
Total | 83,404 | 82,074
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | 0 | (341)
12 months or longer | (12,472) | (13,849)
Total | $ (12,472) | $ (14,190)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 0 | 2
12 months or longer | Position | 66 | 64
Total | Position | 66 | 66
Mortgage-Backed [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 20,856 | $ 204,447
12 months or longer | 419,602 | 267,926
Total | 440,458 | 472,373
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | (1,033) | (15,048)
12 months or longer | (61,652) | (47,303)
Total | $ (62,685) | $ (62,351)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 48 | 149
12 months or longer | Position | 136 | 32
Total | Position | 184 | 181
Collateralized Mortgage Obligations [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 46,530 | $ 211,612
12 months or longer | 508,725 | 374,376
Total | 555,255 | 585,988
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | (1,999) | (14,458)
12 months or longer | (82,284) | (66,299)
Total | $ (84,283) | $ (80,757)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 15 | 77
12 months or longer | Position | 107 | 49
Total | Position | 122 | 126
Corporate [Member] |  |
Unrealized Loss Position, Fair Value [Abstract] |  |
Less than 12 months | $ 12,844 | $ 34,434
12 months or longer | 27,499 | 19,806
Total | 40,343 | 54,240
Unrealized Loss Position, Unrealized Losses [Abstract] |  |
Less than 12 months | (1,579) | (2,970)
12 months or longer | (6,501) | (3,194)
Total | $ (8,080) | $ (6,164)
Unrealized Loss Position, Number of Positions [Abstract] |  |
Less than 12 months | Position | 4 | 12
12 months or longer | Position | 11 | 6
Total | Position | 15 | 18

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