Reserves for Claims Summary Of Transactions In Reserves For Claims (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance, beginning of period	$ 31,333	$ 31,729
Provisions related to: Current year	8,877	8,610
Provisions related to: Prior years	(3,673)	(5,078)
Total provision charged to operations	5,204	3,532
Claims paid, net of recoveries, related to: Current year	(249)	(2,057)
Claims paid, net of recoveries, related to: Prior years	(2,704)	(1,871)
Total claims paid, net of recoveries	(2,953)	(3,928)
Balance, end of year	$ 33,584	$ 31,333