Summary of Investments - SOI OTTI table (Details 7) - Fixed maturities - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Beginning balance	$ 94,687	$ 106,913	$ 102,343	$ 119,532
Initial impairments - credit loss on securities not previously impaired	0	0	0	450
Due to sales, maturities or payoffs during the period		(521)		(521)
Due to increases in cash flows expected to be collected that are recognized over the remaining life of the security	(4,405)	(13,057)	(12,061)	(26,126)
Ending balance	$ 90,282	$ 93,335	$ 90,282	$ 93,335