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v3.23.3

Investments - Maturity Table (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 2,524,634 | $ 2,554,332
Estimated Fair Value | 2,315,978 | $ 2,342,089
2023 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 25,000 |
Estimated Fair Value | 24,767 |
2024 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 699,111 |
Estimated Fair Value | 677,812 |
2025 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 298,564 |
Estimated Fair Value | 285,252 |
2026 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 548,563 |
Estimated Fair Value | 492,182 |
2027 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 98,511 |
Estimated Fair Value | 92,979 |
2038 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 69 |
Estimated Fair Value | 68 |
2039 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 663 |
Estimated Fair Value | 622 |
2042 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 2,439 |
Estimated Fair Value | 2,008 |
2043 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 4,209 |
Estimated Fair Value | 3,573 |
2044 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 4,945 |
Estimated Fair Value | 4,302 |
2045 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 5,163 |
Estimated Fair Value | 4,337 |
2046 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 7,841 |
Estimated Fair Value | 6,540 |
2047 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 7,917 |
Estimated Fair Value | 6,658 |
2048 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 2,032 |
Estimated Fair Value | 1,790 |
2049 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 15,899 |
Estimated Fair Value | 13,366 |
2050 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 109,845 |
Estimated Fair Value | 82,601 |
2051 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 156,133 |
Estimated Fair Value | 116,543 |
2052 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 54,219 |
Estimated Fair Value | 44,328 |
2053 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 163,617 |
Estimated Fair Value | 150,202 |
2054 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 75,509 |
Estimated Fair Value | 67,142 |
2055 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 90,148 |
Estimated Fair Value | 86,125 |
2056 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 105,584 |
Estimated Fair Value | 104,292 |
2058 |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 48,653 |
Estimated Fair Value | $ 48,489 |

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