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Sale of assets and property held for sale (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jun. 30, 2012
Property
Sep. 30, 2012
Sale of assets and property held for sale (Textual) [Abstract]    
Cash proceeds from sale of distribution center $ 8.8  
Gain from sale of distribution center 2.1  
Properties sold 3  
Property held for sale   $ 1.9