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Investments Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | $ 1,389,038 | $ 1,381,318
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 8,682 | 3,563
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 158,739 | 205,262
Fixed maturity securities, available for sale | 1,238,981 | 1,179,619
US Treasury Securities [Member] |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 5,983 | 9,425
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 127 | 152
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 48 | 9
Fixed maturity securities, available for sale | 6,062 | 9,568
US Government Agencies Debt Securities [Member] |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 3,404 | 3,434
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 250 | 277
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 1 | 1
Fixed maturity securities, available for sale | 3,653 | 3,710
US States and Political Subdivisions Debt Securities [Member] |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 314,203 | 344,208
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 2,160 | 1,114
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 29,132 | 37,964
Fixed maturity securities, available for sale | 287,231 | 307,358
Corporate Debt Security Financial Sector |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 266,485 | 243,758
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 2,066 | 512
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 31,255 | 42,383
Fixed maturity securities, available for sale | 237,296 | 201,887
Corporate Debt Security Consumer Sector |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 250,672 | 247,824
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 2,145 | 758
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 37,094 | 47,138
Fixed maturity securities, available for sale | 215,723 | 201,444
Corporate Debt Security Utilities Sector |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 123,625 | 115,738
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 615 | 39
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 20,253 | 23,790
Fixed maturity securities, available for sale | 103,987 | 91,987
Corporate Debt Security Energy Sector |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 73,808 | 76,065
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 64 | 0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 8,049 | 11,395
Fixed maturity securities, available for sale | 65,823 | 64,670
Corporate Debt Security All Other Sector |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 185,153 | 184,022
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 956 | 683
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 21,331 | 29,048
Fixed maturity securities, available for sale | 164,778 | 155,657
Commercial Mortgage Backed Securities [Member] |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 171 | 171
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 0 | 2
Fixed maturity securities, available for sale | 171 | 169
Residential Mortgage Backed Securities [Member] |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 107,174 | 110,582
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 9 | 9
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 10,060 | 10,765
Fixed maturity securities, available for sale | 97,123 | 99,826
Asset-backed Securities [Member] |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost | 58,360 | 45,991
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 290 | 18
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax | 1,516 | 2,767
Fixed maturity securities, available for sale | $ 57,134 | 43,242
Foreign Governments [Member] |  |
Gross Unrealized Gains and Losses [Line Items] |  |
Fixed maturities available-for-sale, cost |  | 100
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax |  | 1
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax |  | 0
Fixed maturity securities, available for sale |  | $ 101

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