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Noncontrolling Interests (Narrative) (Details) (Indura [Member])
9 Months Ended
Jun. 30, 2014
Indura [Member]
 
Noncontrolling Interest [Line Items]  
Agreement to purchase additional equity interest under put option 30.50%
Put option exercise period start date 1 July 2015
Put option exercise period beginning 1 July 2015 2 years
Current ownership percentage 67.30%