Schedule II - Condensed Financial Information of Registrant - Condensed Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Net investment income	$ 299,640	$ 562,530	$ 417,202
Total revenues	558,397	824,091	694,742
Expenses:
Other operating expenses	135,817	126,612	104,584
Total expenses	432,363	596,834	582,674
Earnings before Federal income taxes	126,034	227,257	112,068
Federal income taxes (benefit)	24,890	46,576	19,756
Net earnings	101,144	180,681	92,312
The Company
Revenues:
Dividend income from subsidiaries	2,000	0	1,395
Net investment income	36	10	9
Total revenues	2,036	10	1,404
Expenses:
Other operating expenses	5,140	2,660	3,322
Total expenses	5,140	2,660	3,322
Earnings before Federal income taxes	(3,104)	(2,650)	(1,918)
Federal income taxes (benefit)	(1,077)	(537)	(2,212)
Earnings (loss) before equity in earnings of affiliates	(2,027)	(2,113)	294
Equity in earnings of affiliates	103,171	182,794	92,018
Net earnings	$ 101,144	$ 180,681	$ 92,312