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INVESTMENT SECURITIES - Summary of AFS Securities with Unrealized Losses (Details) $ in Thousands | Mar. 31, 2023 USD ($) security | Dec. 31, 2022 USD ($) security
--- | --- | ---
Number of Securities |  |
Less Than 12 Months | security | 20 | 63
12 Months or More | security | 81 | 46
Total | security | 101 | 109
Fair Value |  |
Less Than 12 Months | $ 70,756 | $ 295,839
12 Months or More | 410,178 | 206,080
Total | 480,934 | 501,919
Unrealized Losses |  |
Less Than 12 Months | 3,462 | 20,185
12 Months or More | 38,432 | 29,855
Total | $ 41,894 | $ 50,040
U.S. Treasury securities |  |
Number of Securities |  |
Less Than 12 Months | security | 0 | 0
12 Months or More | security | 3 | 3
Total | security | 3 | 3
Fair Value |  |
Less Than 12 Months | $ 0 | $ 0
12 Months or More | 17,693 | 17,291
Total | 17,693 | 17,291
Unrealized Losses |  |
Less Than 12 Months | 0 | 0
12 Months or More | 2,374 | 2,779
Total | $ 2,374 | $ 2,779
States and political subdivisions |  |
Number of Securities |  |
Less Than 12 Months | security | 10 | 29
12 Months or More | security | 33 | 17
Total | security | 43 | 46
Fair Value |  |
Less Than 12 Months | $ 25,901 | $ 135,579
12 Months or More | 174,145 | 60,102
Total | 200,046 | 195,681
Unrealized Losses |  |
Less Than 12 Months | 883 | 13,809
12 Months or More | 20,860 | 14,621
Total | $ 21,743 | $ 28,430
GSE residential MBSs |  |
Number of Securities |  |
Less Than 12 Months | security | 0 | 5
12 Months or More | security | 15 | 10
Total | security | 15 | 15
Fair Value |  |
Less Than 12 Months | $ 0 | $ 26,100
12 Months or More | 59,371 | 33,302
Total | 59,371 | 59,402
Unrealized Losses |  |
Less Than 12 Months | 0 | 925
12 Months or More | 3,943 | 3,451
Total | $ 3,943 | $ 4,376
GSE residential CMOs |  |
Number of Securities |  |
Less Than 12 Months | security | 2 | 8
12 Months or More | security | 13 | 9
Total | security | 15 | 17
Fair Value |  |
Less Than 12 Months | $ 10,157 | $ 28,732
12 Months or More | 57,218 | 39,646
Total | 67,375 | 68,378
Unrealized Losses |  |
Less Than 12 Months | 118 | 1,884
12 Months or More | 5,762 | 5,184
Total | $ 5,880 | $ 7,068
Non-agency CMOs |  |
Number of Securities |  |
Less Than 12 Months | security | 4 | 4
12 Months or More | security | 2 | 2
Total | security | 6 | 6
Fair Value |  |
Less Than 12 Months | $ 25,164 | $ 26,555
12 Months or More | 8,050 | 8,639
Total | 33,214 | 35,194
Unrealized Losses |  |
Less Than 12 Months | 2,347 | 1,135
12 Months or More | 2,129 | 1,648
Total | $ 4,476 | $ 2,783
Asset-backed |  |
Number of Securities |  |
Less Than 12 Months | security | 4 | 17
12 Months or More | security | 15 | 5
Total | security | 19 | 22
Fair Value |  |
Less Than 12 Months | $ 9,534 | $ 78,873
12 Months or More | 93,701 | 47,100
Total | 103,235 | 125,973
Unrealized Losses |  |
Less Than 12 Months | 114 | 2,432
12 Months or More | 3,364 | 2,172
Total | $ 3,478 | $ 4,604

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