FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Oct. 31, 2015	Jan. 31, 2015	Nov. 01, 2014
Carrying Value
Fair value measurements
Long-term debt	$ 1,005,644	$ 857,751	$ 978,894
Carrying Value | Second lien senior secured notes
Fair value measurements
Long-term debt	407,292	407,292	407,292
Carrying Value | Mortgage facilities
Fair value measurements
Long-term debt	102,997	211,541	213,292
Carrying Value | Senior secured credit facility
Fair value measurements
Long-term debt	495,355	238,918	358,310
Estimated Fair Value
Fair value measurements
Long-term debt	853,603	798,750	934,654
Estimated Fair Value | Second lien senior secured notes
Fair value measurements
Long-term debt	254,802	345,700	360,792
Estimated Fair Value | Mortgage facilities
Fair value measurements
Long-term debt	103,446	214,132	215,552
Estimated Fair Value | Senior secured credit facility
Fair value measurements
Long-term debt	495,355	238,918	358,310
Estimated Fair Value | Quoted Prices in Active Markets (Level 1)
Fair value measurements
Long-term debt	254,802	345,700	360,792
Estimated Fair Value | Quoted Prices in Active Markets (Level 1) | Second lien senior secured notes
Fair value measurements
Long-term debt	254,802	345,700	360,792
Estimated Fair Value | Significant Unobservable Inputs (Level 3)
Fair value measurements
Long-term debt	598,801	453,050	573,862
Estimated Fair Value | Significant Unobservable Inputs (Level 3) | Mortgage facilities
Fair value measurements
Long-term debt	103,446	214,132	215,552
Estimated Fair Value | Significant Unobservable Inputs (Level 3) | Senior secured credit facility
Fair value measurements
Long-term debt	$ 495,355	$ 238,918	$ 358,310