LONG-TERM DEBT LONG-TERM DEBT - Facilities due 2020 (Details) - USD ($)	3 Months Ended			6 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 15,000,000		$ 15,000,000
Credit Facility revolving loans, carrying value		0		0		$ 70,000,000
Letters of Credit Outstanding, Amount		2,000,000		2,000,000
ABL Facilities due 2020 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 100,000,000		$ 100,000,000
Line of Credit Facility, Expiration Date				Feb. 28, 2020
Commitment fee minimum		1.00%		1.00%
Commitment fee maximum		1.25%		1.25%
Debt Instrument Interest Additional Interest Above annual L I B O R Rate				4.50%
Fixed charge coverage ratio		1.0		1.0
Credit Facility revolving loans, carrying value		$ 0		$ 0
Letters of Credit Outstanding, Amount		48,200,000		48,200,000
Line of Credit Facility, Remaining Borrowing Capacity		$ 44,400,000		44,400,000
Line Of Credit Facility Weighted Average Interest Rate During Period		0.00%
Term Loan Facilities due 2020 [Member]
Debt Instrument [Line Items]
Term Loan Facility due 2020		$ 315,000,000		$ 315,000,000		$ 0
Term Loan Facilities, Expiration Date				Jun. 01, 2020
Original Issue Discount Rate		3.00%		3.00%
Debt Instrument Interest Additional Interest Above annual L I B O R Rate				9.25%
L I B O R floor				1.00%
Quarterly Loan Principal Payment	$ 787,500.000
Debt Instrument, Unamortized Discount		$ 9,400,000		$ 9,400,000
Loan Facility Weighted Average Interest Rate During Period		10.38%
Credit Facilities due 2020 [Member]
Debt Instrument [Line Items]
Deferred Finance Costs, Gross		$ 11,100,000		$ 11,100,000
Leverage ratio		1.5		1.5
Minimum liquidity requirement		$ 100,000,000		$ 100,000,000
2011 Credit Facility
Debt Instrument [Line Items]
Commitment fee minimum		0.50%		0.50%
Line Of Credit Facility Weighted Average Interest Rate During Period		3.14%	2.88%	3.15%	2.88%
2011 Credit Facility | Amendment Of Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 400,000,000		$ 400,000,000
Line of Credit Facility, Expiration Date				Mar. 31, 2016