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, 2021	Dec. 31, 2020	Dec. 31, 2019
Paid related to:
Net balance at December 31	$ 111,768
Plus: reinsurance recoverables	47,394
Balance at December 31	159,162
Property and Casualty Insurance [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at January 1	177,963	$ 209,127	$ 228,970
Less: reinsurance recoverables	64,873	87,083	94,920
Net balance at January 1	113,090	122,044	134,050
Incurred related to:
Current year	28,980	20,670	22,137
Prior years	(6,290)	(3,865)	(9,535)
Total incurred	22,690	16,805	12,602
Paid related to:
Current year	11,040	7,664	7,366
Prior years	12,972	18,095	17,242
Total paid	24,012	25,759	24,608
Net balance at December 31	111,768	113,090	122,044
Plus: reinsurance recoverables	47,394	64,873	87,083
Balance at December 31	159,162	177,963	$ 209,127
Operating Segments [Member] | Property and Casualty Insurance [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at January 1	177,963
Paid related to:
Balance at December 31	$ 159,162	$ 177,963