DEBT - Gross Long-term Debt - Interest Rate - Tabular Disclosure (Details) - HDS (Debt Issuer)	Oct. 30, 2016	Oct. 17, 2016	Apr. 27, 2016	Apr. 11, 2016	Jan. 31, 2016
Secured debt | 5.25% December 2014 Senior Secured First Priority Notes due 2021
DEBT
Interest rate, stated rate (as a percent)	5.25%				5.25%
Secured debt | Credit facility | Senior ABL Facility due 2018
DEBT
Interest rate, rate at end of period (as a percent)	2.19%
Secured debt | Credit facility | Term Loans Facility due 2021
DEBT
Interest rate, rate at end of period (as a percent)					3.75%
Secured debt | Credit facility | Term B-1 Loan Facility due 2021
DEBT
Interest rate, rate at end of period (as a percent)	3.59%
Secured debt | Credit facility | Term B-2 Loan Facility due 2023
DEBT
Interest rate, rate at end of period (as a percent)	3.63%
Unsecured debt | 5.75% April 2016 Senior Unsecured Notes due 2024
DEBT
Interest rate, stated rate (as a percent)	5.75%			5.75%
Unsecured debt | 11.5% October 2012 Senior Unsecured Notes due 2020
DEBT
Interest rate, stated rate (as a percent)			11.50%		11.50%
Unsecured debt | 7.5% February 2013 Senior Unsecured Notes due 2020
DEBT
Interest rate, stated rate (as a percent)		7.50%			7.50%