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v3.23.3

Securities - Gross Unrealized Losses and Fair Value by Investment Category (Details) $ in Thousands | Sep. 30, 2023 USD ($) security | Dec. 31, 2022 USD ($) security
--- | --- | ---
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 7 | 247
Fair Value, Less than 12 Months | $ 6,153 | $ 726,431
Unrealized Losses, Less than 12 Months | $ (80) | $ (41,924)
Number of positions, 12 Months or More | security | 160 | 98
Fair value, 12 Months or More | $ 864,449 | $ 788,657
Unrealized Losses, 12 Months or More | $ (196,564) | $ (159,375)
Number of positions | security | 167 | 345
Fair Value | $ 870,602 | $ 1,515,088
Unrealized Losses | $ (196,644) | $ (201,299)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 122
Fair Value, Less than 12 Months | $ 0 | $ 448,575
Unrealized Losses, Less than 12 Months | $ 0 | $ (51,436)
Number of positions, 12 Months or More | security | 237 | 115
Fair Value, 12 Months or More | $ 1,079,120 | $ 755,527
Unrealized Losses, 12 Months or More | $ (166,504) | $ (66,113)
Number of positions | security | 237 | 237
Fair Value | $ 1,079,120 | $ 1,204,102
Unrealized Losses | $ (166,504) | $ (117,549)
Obligations of other U.S. Government agencies and corporations |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security |  | 5
Fair Value, Less than 12 Months |  | $ 164,660
Unrealized Losses, Less than 12 Months |  | $ (5,340)
Number of positions, 12 Months or More | security |  | 0
Fair value, 12 Months or More |  | $ 0
Unrealized Losses, 12 Months or More |  | $ 0
Number of positions | security |  | 5
Fair Value |  | $ 164,660
Unrealized Losses |  | $ (5,340)
Obligations of states and political subdivisions |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 6 | 84
Fair Value, Less than 12 Months | $ 5,196 | $ 96,939
Unrealized Losses, Less than 12 Months | $ (27) | $ (4,869)
Number of positions, 12 Months or More | security | 16 | 11
Fair value, 12 Months or More | $ 23,814 | $ 33,038
Unrealized Losses, 12 Months or More | $ (4,705) | $ (4,499)
Number of positions | security | 22 | 95
Fair Value | $ 29,010 | $ 129,977
Unrealized Losses | $ (4,732) | $ (9,368)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 105
Fair Value, Less than 12 Months | $ 0 | $ 191,442
Unrealized Losses, Less than 12 Months | $ 0 | $ (35,871)
Number of positions, 12 Months or More | security | 129 | 24
Fair Value, 12 Months or More | $ 231,393 | $ 49,697
Unrealized Losses, 12 Months or More | $ (57,660) | $ (12,454)
Number of positions | security | 129 | 129
Fair Value | $ 231,393 | $ 241,139
Unrealized Losses | $ (57,660) | $ (48,325)
Residential mortgage backed securities: | Government agency mortgage backed securities |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 0 | 97
Fair Value, Less than 12 Months | $ 0 | $ 214,516
Unrealized Losses, Less than 12 Months | $ 0 | $ (15,115)
Number of positions, 12 Months or More | security | 53 | 29
Fair value, 12 Months or More | $ 267,412 | $ 237,970
Unrealized Losses, 12 Months or More | $ (49,799) | $ (36,921)
Number of positions | security | 53 | 126
Fair Value | $ 267,412 | $ 452,486
Unrealized Losses | $ (49,799) | $ (52,036)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 8
Fair Value, Less than 12 Months | $ 0 | $ 94,258
Unrealized Losses, Less than 12 Months | $ 0 | $ (4,186)
Number of positions, 12 Months or More | security | 70 | 62
Fair Value, 12 Months or More | $ 398,876 | $ 364,870
Unrealized Losses, 12 Months or More | $ (41,350) | $ (20,246)
Number of positions | security | 70 | 70
Fair Value | $ 398,876 | $ 459,128
Unrealized Losses | $ (41,350) | $ (24,432)
Residential mortgage backed securities: | Government agency collateralized mortgage obligations |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 0 | 16
Fair Value, Less than 12 Months | $ 0 | $ 109,753
Unrealized Losses, Less than 12 Months | $ 0 | $ (8,552)
Number of positions, 12 Months or More | security | 41 | 36
Fair value, 12 Months or More | $ 392,897 | $ 391,416
Unrealized Losses, 12 Months or More | $ (108,896) | $ (95,312)
Number of positions | security | 41 | 52
Fair Value | $ 392,897 | $ 501,169
Unrealized Losses | $ (108,896) | $ (103,864)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 4
Fair Value, Less than 12 Months | $ 0 | $ 98,912
Unrealized Losses, Less than 12 Months | $ 0 | $ (5,479)
Number of positions, 12 Months or More | security | 18 | 14
Fair Value, 12 Months or More | $ 346,411 | $ 293,698
Unrealized Losses, 12 Months or More | $ (49,030) | $ (25,227)
Number of positions | security | 18 | 18
Fair Value | $ 346,411 | $ 392,610
Unrealized Losses | $ (49,030) | $ (30,706)
Commercial mortgage backed securities: | Government agency mortgage backed securities |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 0 | 4
Fair Value, Less than 12 Months | $ 0 | $ 10,114
Unrealized Losses, Less than 12 Months | $ 0 | $ (1,053)
Number of positions, 12 Months or More | security | 2 | 0
Fair value, 12 Months or More | $ 5,128 | $ 0
Unrealized Losses, 12 Months or More | $ (908) | $ 0
Number of positions | security | 2 | 4
Fair Value | $ 5,128 | $ 10,114
Unrealized Losses | $ (908) | $ (1,053)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 1
Fair Value, Less than 12 Months | $ 0 | $ 13,745
Unrealized Losses, Less than 12 Months | $ 0 | $ (3,261)
Number of positions, 12 Months or More | security | 1 | 0
Fair Value, 12 Months or More | $ 13,189 | $ 0
Unrealized Losses, 12 Months or More | $ (3,800) | $ 0
Number of positions | security | 1 | 1
Fair Value | $ 13,189 | $ 13,745
Unrealized Losses | $ (3,800) | $ (3,261)
Commercial mortgage backed securities: | Government agency collateralized mortgage obligations |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 0 | 16
Fair Value, Less than 12 Months | $ 0 | $ 67,026
Unrealized Losses, Less than 12 Months | $ 0 | $ (3,829)
Number of positions, 12 Months or More | security | 28 | 21
Fair value, 12 Months or More | $ 138,742 | $ 118,821
Unrealized Losses, 12 Months or More | $ (27,071) | $ (21,760)
Number of positions | security | 28 | 37
Fair Value | $ 138,742 | $ 185,847
Unrealized Losses | $ (27,071) | $ (25,589)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 2
Fair Value, Less than 12 Months | $ 0 | $ 7,651
Unrealized Losses, Less than 12 Months | $ 0 | $ (626)
Number of positions, 12 Months or More | security | 9 | 7
Fair Value, 12 Months or More | $ 36,490 | $ 31,220
Unrealized Losses, 12 Months or More | $ (8,235) | $ (5,933)
Number of positions | security | 9 | 9
Fair Value | $ 36,490 | $ 38,871
Unrealized Losses | $ (8,235) | $ (6,559)
Other debt securities |  |
Available for Sale: |  |
Number of positions, Less than 12 Months | security | 1 | 25
Fair Value, Less than 12 Months | $ 957 | $ 63,423
Unrealized Losses, Less than 12 Months | $ (53) | $ (3,166)
Number of positions, 12 Months or More | security | 20 | 1
Fair value, 12 Months or More | $ 36,456 | $ 7,412
Unrealized Losses, 12 Months or More | $ (5,185) | $ (883)
Number of positions | security | 21 | 26
Fair Value | $ 37,413 | $ 70,835
Unrealized Losses | $ (5,238) | $ (4,049)
Held to Maturity: |  |
Number of positions, Less than 12 Months | security | 0 | 2
Fair Value, Less than 12 Months | $ 0 | $ 42,567
Unrealized Losses, Less than 12 Months | $ 0 | $ (2,013)
Number of positions, 12 Months or More | security | 10 | 8
Fair Value, 12 Months or More | $ 52,761 | $ 16,042
Unrealized Losses, 12 Months or More | $ (6,429) | $ (2,253)
Number of positions | security | 10 | 10
Fair Value | $ 52,761 | $ 58,609
Unrealized Losses | $ (6,429) | $ (4,266)

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