Schedule II - Condensed Financial Information of Registrant - Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues
Net investment income (loss)	$ 144,538	$ 128,419	$ 95,972
Equity in earnings (loss) of unconsolidated subsidiaries	22,203	6,791	4,888
Other income (loss)	13,510	10,777	9,404
Total revenues	1,150,404	1,137,212	1,106,688
Expenses
Interest expense	22,342	23,150	20,372
Total expenses	1,087,326	1,176,361	1,112,904
Income tax expense (benefit)	10,334	(545)	(5,814)
Net income (loss)	52,744	(38,604)	(402)
Other comprehensive income (loss)	32,098	94,118	(314,891)
Comprehensive income (loss)	84,842	55,514	(315,293)
Parent Company
Revenues
Net investment income (loss)	33	762	(663)
Equity in earnings (loss) of unconsolidated subsidiaries	0	30	0
Net investment gains (losses)	(285)	(22)	0
Other income (loss)	6,891	3,955	1,970
Total revenues	6,639	4,725	1,307
Expenses
Interest expense	14,825	15,583	14,445
Other expenses	36,245	30,357	32,513
Total expenses	51,070	45,940	46,958
Income (loss) before income tax expense (benefit) and equity in net income (loss) of consolidated subsidiaries	(44,431)	(41,215)	(45,651)
Income tax expense (benefit)	(11,092)	(6,001)	(7,994)
Income (loss) before equity in net income (loss) of consolidated subsidiaries	(33,339)	(35,214)	(37,657)
Equity in net income (loss) of consolidated subsidiaries	86,083	(3,390)	37,255
Net income (loss)	52,744	(38,604)	(402)
Other comprehensive income (loss)	32,098	94,118	(314,891)
Comprehensive income (loss)	$ 84,842	$ 55,514	$ (315,293)