FINANCIAL INSTRUMENTS AND FAIR VALUE FINANCIAL INSTRUMENTS AND FAIR VALUE (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014	Nov. 30, 2013
Fair Value, Inputs, Level 2 [Member] | Other Long-term Liabilities and Current Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of interest rate swaps	$ (6.0)		$ (2.7)
New Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional principal amount of derivative liability	100.0	$ 100.0
Notional principal amount of derivative liability, at maturity		$ 53.1
Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional principal amount of derivative liability	67.7			$ 75.0
Notional principal amount of derivative liability, at maturity				$ 38.7
Interest rate swap, net loss amount expected to be reclassified in the next twelve months	(2.8)
Fair value of interest rate swaps	$ 6.0		2.7
One-Month LIBOR [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional principal amount of derivative liability			71.5
One-Month LIBOR [Member] | Interest Rate Swap 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional principal amount of derivative liability			$ 17.2