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Basis of Presentation (Details) - Majority-Owned Subsidiaries [Member]
Jun. 30, 2015
Minimum [Member]  
Schedule of Equity Method Investments [Line Items]  
Percentage of ownership, equity method (in hundredths) 20.00%
Maximum [Member]  
Schedule of Equity Method Investments [Line Items]  
Percentage of ownership, equity method (in hundredths) 50.00%