Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	1 Months Ended
	Mar. 31, 2014 Esurance	Jun. 30, 2007 Tribune Company Litigation [Member] Pending Litigation [Member]
Loss Contingencies [Line Items]
Warranty agreement period	18 months
Non-solicitation agreement period	3 years
Percentage of fluctuation in loss reserves of transferred subsidiaries retained	90.00%
Proceeds from Sale, Maturity and Collection of Investments		$ 39.0