Related Party Transactions Income Statement Related Party Amounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Related Party Transactions [Abstract]
Premium income, net of related party premiums ceded of $17,774, $15,731, and $13,901	$ 66,928	$ 68,722	$ 71,453
Life and other policy benefits, net of reinsurance recoveries of $8,862, $6,494, and $4,594	189,125	193,215	209,102
Decrease in future policy benefits	(88,639)	(52,842)	(46,915)
Related party premiums ceded	17,774	15,731	13,901
Reinsurance recoveries	$ 8,862	$ 6,494	$ 4,594