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Separate Accounts (Tables) | 9 Months Ended
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Sep. 30, 2025
Separate Accounts Disclosure [Abstract] |
Schedule of Fair Value of Separate Accounts by Major Category of Investment | The following table represents the fair value of assets supporting separate accounts by major investment category:
|  | September 30, 2025 |  |  | December 31, 2024 |
|  | (In thousands) |
Fixed-income securities |  | $ | 633,125 |  |  | $ | 708,225 |
Equity securities |  |  | 1,599,150 |  |  |  | 1,490,628 |
Cash and cash equivalents |  |  | 102,823 |  |  |  | 46,764 |
Due to/from funds |  |  | (21,245 | ) |  |  | (36,350 | )
Other |  |  | 21 |  |  |  | 20 |
Total separate account assets |  | $ | 2,313,874 |  |  | $ | 2,209,287 |
Schedule of Balances and Changes in Seperate Account Liabilities | The following table represents the balances of and changes in separate account liabilities:
|  | Nine months ended |  |  | Year ended |
|  | September 30, 2025 |  |  | December 31, 2024 |
|  | (In thousands) |
Separate account liabilities balance, beginning of period |  | $ | 2,209,287 |  |  | $ | 2,395,842 |
Premiums, deposits and transfers |  |  | 128,345 |  |  |  | 147,995 |
Surrenders, withdrawals and transfers |  |  | (320,283 | ) |  |  | (378,126 | )
Investment performance |  |  | 266,258 |  |  |  | 300,545 |
Management fees and other charges |  |  | (44,042 | ) |  |  | (57,734 | )
Foreign exchange translation |  |  | 74,309 |  |  |  | (199,235 | )
Separate account liabilities balance, end of period |  | $ | 2,313,874 |  |  | $ | 2,209,287 |
Cash surrender value |  | $ | 2,283,915 |  |  | $ | 2,173,070 |

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