XML 54 R45.htm IDEA: XBRL DOCUMENT v2.4.0.8
Property (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended 12 Months Ended
Jun. 30, 2014
property
Dec. 31, 2013
property
Real Estate [Abstract]    
Number of operating properties sold 5  
Proceeds from sale and disposition of property $ 94.9  
Gain on sale of property 23.2  
Number of properties held for sale   8
Property held for sale   $ 155.0