Policy Liabilities and Short Duration Contracts Policy Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Policy claims payable at January 1	$ 8,610	$ 9,538	$ 9,653
Reinsurance recoverable	367	407	543
Net balance policy claims payable at January 1	8,243	9,131	9,110
Claims incurred related to current year	24,793	25,036	26,000
Claims incurred related to prior years	(197)	(209)	(493)
Total claims incurred	24,596	24,827	25,507
Claims paid related to current year	18,933	18,037	18,681
Claims paid related to prior years	6,803	7,678	6,805
Total claims paid	25,736	25,715	25,486
Policy claims payable at December 31	7,614	8,610	9,538
Reinsurance recoverable	511	367	407
Net balance policy claims payable at December 31	$ 7,103	$ 8,243	$ 9,131