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Net Investment Gains (Losses) (Net Investment Gains (Losses)) (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Jun. 30, 2023	Mar. 31, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Fixed maturity securities, Gains			$ 15,486	$ 2,003	$ 4,224
Fixed maturity securities, losses			(32,866)	(25,429)	(11,654)
Net realized gains (losses) on investment sales (2)			116,475	161,271	(12,879)
Change in unrealized gains (losses)			120,799	70,448	(632)
Investment funds			1,835	(25,625)	12,407
Real estate (3) (4)			(2,647)	(70,934)	293,525
Loans receivable			0	(18,841)	(32)
Other			(139,344)	(45,353)	(67,648)
Net realized and unrealized gains on investments in earnings before allowance for expected credit losses			79,738	47,540	217,311
Fixed maturity securities			36,080	715	(14,841)
Loans receivable			1,890	(1,213)	(73)
Change in allowance for expected credit losses on investments			37,970	(498)	(14,914)
Net investment gains			117,708	47,042	202,397
Income tax expense			(29,205)	(10,250)	(42,670)
After-tax net investment gains			$ 88,503	36,792	$ 159,727
Gain on Sale of Investments	$ 89,000
Impairment of real estate				$ 72,000
Gains (losses) ion sale of investment real estate		$ 251,000

X

- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

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Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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- Definition

The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans and leases that were sold during the reporting period. This element refers to the gain (loss) and not to the cash proceeds of the sales. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.

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The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

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The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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Available for Sale and Held-to-Maturity Realized Gains, Debt Securities, Excluding Other than Temporary Impairments and Allowances

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Debt Securities, Allowance for Credit Loss, Period Increase (Decrease)

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Realized Gain (Loss) on Marketable Securities, Equity Method Investments, and Other Investments, Before Tax

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