Contingent Liabilities Contingent Liabilities (Details) (USD $)	0 Months Ended
	Feb. 12, 2014	Mar. 23, 2015 policy	Apr. 09, 2014 claim	Jul. 12, 2013 case claim	Dec. 31, 2014 state	Jun. 06, 2012 treaty	Jun. 05, 2012 unnamed_trust	Aug. 26, 2013 claim
Loss Contingencies [Line Items]
Civil monetary penalty fee	$ 1,100,000.0
Loss Contingency, Number of States Issuing Letters Directing to take Remedial Action				2
UPCH
Loss Contingencies [Line Items]
Number of states investigating COI rate adjustments					31
Kelmar
Loss Contingencies [Line Items]
Number of states investigating COI rate adjustments					7
Subsequent Event
Loss Contingencies [Line Items]
Loss Contingency, Number Of Policies Due Restitution		7
Pending Litigation | United States District Court for the District of Delaware
Loss Contingencies [Line Items]
Number of unnamed trusts						1	60
Number of claims dismissed			7
Number of claims			10
Number of claims partially dismissed			2
Pending Litigation | United States District Court for the Southern District of New York
Loss Contingencies [Line Items]
Number of claims				2
Loss Contingency, Pending Claims, Number Decertified								1
Number of cases named as a defendant (in cases)				6