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Securities Held-To-Maturity - Summary of Securities Held-To-Maturity (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Securities Held-to-Maturity |  |  |
Face Value | $ 231,708 |  | $ 234,255
Net Carrying Value | 155,210 |  | 156,547
Unrealized Loss | (27,315) |  | (11,976)
Estimated Fair Value | 127,895 |  | 144,571
Allowance for Credit Losses | 4,534 | $ 5,025 | 3,153
APL certificates |  |  |
Securities Held-to-Maturity |  |  |
Face Value | 192,791 |  | 192,791
Net Carrying Value | 125,290 |  | 123,475
Unrealized Loss | (29,734) |  | (13,348)
Estimated Fair Value | 95,556 |  | 110,127
Allowance for Credit Losses | 3,375 | 3,330 | 2,783
B Piece bonds |  |  |
Securities Held-to-Maturity |  |  |
Face Value | 38,917 |  | 41,464
Net Carrying Value | 29,920 |  | 33,072
Unrealized Gain | 2,419 |  | 1,372
Estimated Fair Value | 32,339 |  | 34,444
Allowance for Credit Losses | $ 1,159 | $ 1,695 | $ 370

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