Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Fair Value Measurements, Nonrecurring) (Details)

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FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Fair Value Measurements, Nonrecurring) (Details) - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Instrument, Fair Value Disclosure $ 141.9 $ 134.7