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Commitments and Contingencies (Detail Textuals)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Sep. 30, 2012
Party
Sep. 30, 2015
USD ($)
Jun. 30, 2015
USD ($)
Commitments And Contingencies [Line Items]      
Number of potentially responsible parties | Party 140    
Current and long-term liabilities      
Commitments And Contingencies [Line Items]      
Accrual for environmental loss contingencies payments   $ 6,760 $ 6,827