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Securities - Securities Gross (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Less Than 12 Months |  |
Fair Value | $ 180,332 | $ 692,782
Unrealized Losses | (5,431) | (63,580)
More Than 12 Months |  |
Fair Value | 1,031,493 | 536,618
Unrealized Losses | (213,241) | (108,554)
Total |  |
Fair Value | 1,211,825 | 1,229,400
Unrealized Losses | (218,672) | (172,134)
U.S. Government agencies |  |
Less Than 12 Months |  |
Fair Value | 3,684 | 58,462
Unrealized Losses | (160) | (4,034)
More Than 12 Months |  |
Fair Value | 85,832 | 38,959
Unrealized Losses | (14,664) | (7,743)
Total |  |
Fair Value | 89,516 | 97,421
Unrealized Losses | (14,824) | (11,777)
Mortgage Backed Securities - residential |  |
Less Than 12 Months |  |
Fair Value | 13,339 | 234,488
Unrealized Losses | (452) | (19,757)
More Than 12 Months |  |
Fair Value | 543,186 | 379,520
Unrealized Losses | (112,277) | (71,259)
Total |  |
Fair Value | 556,525 | 614,008
Unrealized Losses | (112,729) | (91,016)
Mortgage Backed Securities - commercial |  |
Less Than 12 Months |  |
Fair Value |  | 9,677
Unrealized Losses |  | (426)
More Than 12 Months |  |
Fair Value | 7,284 |
Unrealized Losses | (674) |
Total |  |
Fair Value | 7,284 | 9,677
Unrealized Losses | (674) | (426)
Collateralized Mortgage Obligations |  |
Less Than 12 Months |  |
Fair Value | 15,852 | 135,135
Unrealized Losses | (613) | (11,331)
More Than 12 Months |  |
Fair Value | 165,104 | 63,792
Unrealized Losses | (32,938) | (13,588)
Total |  |
Fair Value | 180,956 | 198,927
Unrealized Losses | (33,551) | (24,919)
State and municipal obligations |  |
Less Than 12 Months |  |
Fair Value | 145,686 | 233,439
Unrealized Losses | (4,162) | (24,291)
More Than 12 Months |  |
Fair Value | 197,579 | 41,510
Unrealized Losses | (45,459) | (12,823)
Total |  |
Fair Value | 343,265 | 274,949
Unrealized Losses | (49,621) | (37,114)
Municipal taxable |  |
Less Than 12 Months |  |
Fair Value | 1,771 | 18,637
Unrealized Losses | (44) | (3,706)
More Than 12 Months |  |
Fair Value | 30,357 | 12,837
Unrealized Losses | (7,203) | (3,141)
Total |  |
Fair Value | 32,128 | 31,474
Unrealized Losses | (7,247) | (6,847)
U.S. Treasury |  |
Less Than 12 Months |  |
Fair Value |  | 2,944
Unrealized Losses |  | (35)
More Than 12 Months |  |
Fair Value | 2,151 |
Unrealized Losses | (26) |
Total |  |
Fair Value | 2,151 | 2,944
Unrealized Losses | $ (26) | $ (35)

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