Schedule V - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Allowance for possible losses on mortgage loans:
Allowance for possible losses on mortgage loans:
Balance at Beginning of Period	$ 675	$ 675	$ 650
Charged to costs and expenses	1,307	0	25
Charged to retained earnings	504	0	0
Reductions	0	0	0
Balance at End of Period	2,486	675	675
Allowance for current expected credit losses on debt securities
Allowance for possible losses on mortgage loans:
Balance at Beginning of Period	0
Charged to costs and expenses	0
Charged to retained earnings	3,334
Reductions	(3,334)
Balance at End of Period	0	0
Allowance for possible losses on real estate:
Allowance for possible losses on mortgage loans:
Balance at Beginning of Period	596	611	611
Charged to costs and expenses	0	0	0
Charged to retained earnings	0	0	0
Reductions	(172)	(15)	0
Balance at End of Period	$ 424	$ 596	$ 611