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Investment Securities - Summary of Maturities (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Available for sale, Amortized Cost |  |
Amortized Cost | $ 416,217 | $ 421,272
Available for sale, Fair Value |  |
Fair Value | 366,742 | 421,466
Total debt securities |  |
Available for sale, Amortized Cost |  |
Within one year | 0 |
After one year, but within five years | 133,910 |
After five years, but within ten years | 40,660 |
After ten years | 240,812 |
Amortized Cost | 415,382 | 420,394
Available for sale, Fair Value |  |
Within one year | 0 |
After one year, but within five years | 123,295 |
After five years, but within ten years | 36,742 |
After ten years | 205,870 |
Fair Value | $ 365,907 | $ 420,588

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