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Commitments and Contingencies, Textuals (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]  
Environmental accrual $ 21.8
Expected period the Company expects remedictations actions will be taken 30 years
Potential increase in environmental costs $ 19.1
Time period within which Company's recorded estimate of its obligation may change 12 months