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Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS AND LIABILITIES (Schedule Of Finite-Lived Intangible Assets By Major Class) (Details)

v3.7.0.1
GOODWILL AND OTHER INTANGIBLE ASSETS AND LIABILITIES (Schedule Of Finite-Lived Intangible Assets By Major Class) (Details) - Permits [Member] - Other Assets [Member] - USD ($)
$ in Millions
Jun. 30, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items] Ìý Ìý
Definite lived intangible assets - Gross Carrying Amount $ 78.8 $ 78.4
Definite lived intangible assets - Accumulated Amortization (25.6) (24.6)
Definite lived intangible assets - Net Carrying Amount $ 53.2 $ 53.8