Schedule V - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for possible losses on mortgage loans:
Allowance for possible losses on mortgage loans:
Balance at beginnning of period	$ 650	$ 650	$ 650
Charged to cost and expense	25	0	0
Reduction	0	0	0
Transfers	0	0	0
Balance at end of period	675	650	650
Allowance for possible losses on real estate:
Allowance for possible losses on mortgage loans:
Balance at beginnning of period	611	611	1,629
Charged to cost and expense	0	0	0
Reduction	0	0	(1,018)
Transfers	0	0	0
Balance at end of period	$ 611	$ 611	$ 611