Investments - Net Gains (Losses) on Investments (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Fixed-maturities available for sale
Net realized gains (losses) on investments sold or redeemed	[1]	$ (2,053)	$ (3,019)	$ (3,487)	$ (6,701)
Change in unrealized gains (losses) on residential mortgage loans sold	[1]	4	367	(937)	130
Impairment losses due to intent to sell		0	(237)	0	(237)
Net unrealized gains (losses) on investments still held
Net unrealized gains (losses) on investments still held	[1]	1,310	(1,829)	1,978	419
Total net gains (losses) on investments	[1]	(739)	(4,718)	(2,446)	(6,389)
Net gains (losses) on residential mortgage loans held for sale	[2]	(6,704)	(50)	(5,417)	334
Net gains (losses) on other financial instruments	[1],[3]	2,591	281	2,288	2,058
Net gains (losses) on investments and other financial instruments		(4,852)	(4,487)	(5,575)	(3,997)
Fixed-maturities available for sale
Fixed-maturities available for sale
Gross realized gains	[1]	371	579	463	631
Gross realized losses	[1]	(2,426)	(3,413)	(4,868)	(7,148)
Fixed-maturities available for sale, net	[1]	(2,055)	(2,834)	(4,405)	(6,517)
Fixed maturities trading securities
Fixed-maturities available for sale
Trading securities		0	(191)	0	(191)
Net unrealized gains (losses) on investments still held
Trading securities	[1]	30	(1,371)	2,249	(3,131)
Equity securities
Fixed-maturities available for sale
Equity securities	[1]	0	6	898	6
Net unrealized gains (losses) on investments still held
Equity securities	[1]	1,304	(416)	(243)	3,605
Other investments
Fixed-maturities available for sale
Other investments	[1]	2	0	20	1
Net unrealized gains (losses) on investments still held
Other investments	[1]	$ (24)	$ (42)	$ (28)	$ (55)

[1] Does not include activities related to our residential mortgage loans held for sale. See Note 7 for additional information.

[2] Includes realized and unrealized net gains (losses) on residential mortgage loans held for sale and related activities, including interest rate hedges. See Note 7 for additional details.

[3] Includes changes in the fair value of embedded derivatives associated with our XOL Program. See Note 8 for additional information.