XML 104 R87.htm IDEA: XBRL DOCUMENT v3.3.1.900
Variable Interest Entities (Details) - Variable Interest Entity, Not Primary Beneficiary [Member] - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Other Investments [Member]    
Variable Interest Entity [Line Items]    
Variable interest entity nonconsolidated assets $ 24.5 $ 33.3
Variable interest entity, maximum loss exposure 24.5  
Equity Method Investments [Member]    
Variable Interest Entity [Line Items]    
Variable interest entity nonconsolidated assets 67.8 $ 65.0
Variable interest entity, maximum loss exposure $ 67.8