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v3.25.2

Allowance for Credit Losses - Schedule of Held-to-Maturity Debt Securities by Credit Quality Indicator (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024
--- | --- | --- | ---
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
Amortized Cost | $ 3,502,584 | $ 3,613,720 | $ 3,756,415
Less: Allowance for credit losses | (398) | (457) | (491)
Held-to-maturity securities, net of allowance for credit losses | 3,502,186 | 3,613,263 | 3,755,924
U.S. government agencies |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 135,000 |  |
2021 | 147,825 |  |
Prior | 30,715 |  |
Amortized Cost | 313,540 | 313,539 | 336,458
U.S. government agencies | 1-4 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 135,000 |  |
2021 | 147,825 |  |
Prior | 30,715 |  |
Amortized Cost | 313,540 |  |
U.S. government agencies | 5-7 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
Prior | 0 |  |
Amortized Cost | 0 |  |
U.S. government agencies | 8-10 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
Prior | 0 |  |
Amortized Cost | 0 |  |
Municipal |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 4,091 |  |
2022 | 1,030 |  |
2021 | 6,767 |  |
Prior | 144,865 |  |
Amortized Cost | 156,753 | $ 161,016 | $ 166,400
Municipal | 1-4 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 4,091 |  |
2022 | 1,030 |  |
2021 | 6,767 |  |
Prior | 142,741 |  |
Amortized Cost | 154,629 |  |
Municipal | 5-7 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
Prior | 2,124 |  |
Amortized Cost | 2,124 |  |
Municipal | 8-10 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
Prior | 0 |  |
Amortized Cost | 0 |  |
Mortgage-backed securities |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 310,359 |  |
2022 | 508,750 |  |
2021 | 2,159,651 |  |
Prior | 0 |  |
Amortized Cost | 2,978,760 |  |
Mortgage-backed securities | 1-4 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 310,359 |  |
2022 | 508,750 |  |
2021 | 2,159,651 |  |
Prior | 0 |  |
Amortized Cost | 2,978,760 |  |
Mortgage-backed securities | 5-7 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
Prior | 0 |  |
Amortized Cost | 0 |  |
Mortgage-backed securities | 8-10 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
Prior | 0 |  |
Amortized Cost | 0 |  |
Corporate notes |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 14,971 |  |
2021 | 0 |  |
Prior | 38,560 |  |
Amortized Cost | 53,531 |  |
Corporate notes | 1-4 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 |  |  |
2022 | 14,971 |  |
2021 | 0 |  |
Prior | 38,560 |  |
Amortized Cost | 53,531 |  |
Corporate notes | 5-7 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
Prior | 0 |  |
Amortized Cost | 0 |  |
Corporate notes | 8-10 internal grade |  |  |
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items] |  |  |
2025 | 0 |  |
2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
Prior | 0 |  |
Amortized Cost | $ 0 |  |

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