Reinsurance and Policy Benefits and Losses, Claims, and Loss Expenses Payable (Activity in the Liability for Unpaid Losses and Loss Adjustment Expenses for Property and Casualty Insurance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Paid related to:
Net balance at December 31	$ 110,545
Plus: reinsurance recoverables	41,329
Balance at December 31	151,874
Property and Casualty Insurance [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at January 1	159,162	$ 177,963	$ 209,127
Less: reinsurance recoverables	47,394	64,873	87,083
Net balance at January 1	111,768	113,090	122,044
Incurred related to:
Current year	27,570	28,980	20,670
Prior years	(5,828)	(6,290)	(3,865)
Total incurred	21,742	22,690	16,805
Paid related to:
Current year	10,572	11,040	7,664
Prior years	12,393	12,972	18,095
Total paid	22,965	24,012	25,759
Net balance at December 31	110,545	111,768	113,090
Plus: reinsurance recoverables	41,329	47,394	64,873
Balance at December 31	151,874	159,162	$ 177,963
Operating Segments [Member] | Property and Casualty Insurance [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at January 1	159,162
Paid related to:
Balance at December 31	$ 151,874	$ 159,162