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Separate Accounts - Schedule of Fair Value of Separate Accounts by Major Category of Investment (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |
Separate account assets | $ 2,318,492 | $ 2,209,287
Fixed Income Securities [Member] |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |
Separate account assets | 650,070 | 708,225
Equity Securities [Member] |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |
Separate account assets | 1,579,249 | 1,490,628
Cash and Cash Equivalents [Member] |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |
Separate account assets | 97,731 | 46,764
Due To/From Funds [Member] |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |
Separate account assets | (8,579) | (36,350)
Other [Member] |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |
Separate account assets | $ 21 | $ 20

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