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ENVIRONMENTAL LIABILITIES (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Environmental Remediation Obligations [Abstract]  
Environmental remediation liabilities $ 32.5us-gaap_AccrualForEnvironmentalLossContingencies
Environmental remediation liabilities, classified as accrued liabilities 3.2us-gaap_AccruedEnvironmentalLossContingenciesCurrent
Environmental remediation liabilities, classified as other liabilities $ 29.3us-gaap_AccruedEnvironmentalLossContingenciesNoncurrent