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Statutory Financial Information, Capital Requirements, and Restrictions on Dividends and Transfers of Funds - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Statutory Accounting Practices [Line Items] |  |
Retained earnings | $ 3,139,489 | $ 3,029,396
Maximum Ordinary Dividends | $ 290,300 |
Maximum borrowing percentage | 10.00% |
New jersey dividend restriction percentage | 10.00% |
New york dividend restriction percentage | 10.00% |
New york dividend restriction on adjusted net investment income | 100.00% |
Parent Company |  |
Statutory Accounting Practices [Line Items] |  |
Retained earnings | $ 3,100,000 |
Additional borrowing capacity for parent | 171,800 |
Parent Company |  |
Statutory Accounting Practices [Line Items] |  |
Investments and Cash | 402,500 |
Retained earnings | $ 3,139,489 | $ 3,029,396

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