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Investments, Fixed Maturities by Contractual Maturities (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Carrying Value [Abstract] |  |
Due in one year or less | $ 2,510 | $ 2,041
Due after one year through five years | 21,419 | 18,373
Due after five years through ten years | 80,244 | 89,892
Due after ten years | 122,463 | 124,609
Asset backed securities | 30,375 | 19,191
Carrying value total | 257,011 | 254,106
Amortized Cost [Abstract] |  |
Due in one year or less | 2,500 | 2,015
Due after one year through five years | 20,060 | 17,039
Due after five years through ten years | 73,420 | 79,993
Due after ten years | 106,667 | 104,527
Asset backed securities | 30,327 | 18,887
Amortized cost total | $ 232,974 | $ 222,461

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