FAIR VALUE MEASUREMENTS (Details) (USD $) In Thousands, unless otherwise specified	May 02, 2015	Jan. 31, 2015	May 03, 2014
Estimated Fair Value
Fair value measurements
Long-term debt	$ 856,570	$ 798,750	$ 837,685
Estimated Fair Value | Second lien senior secured notes
Fair value measurements
Long-term debt	354,228	345,700	392,234
Estimated Fair Value | Mortgage facilities
Fair value measurements
Long-term debt	211,637	214,132	218,315
Estimated Fair Value | Senior secured credit facility
Fair value measurements
Long-term debt	290,705	238,918	227,136
Quoted Prices in Active Markets (Level 1)
Fair value measurements
Long-term debt	354,228	345,700	392,234
Quoted Prices in Active Markets (Level 1) | Second lien senior secured notes
Fair value measurements
Long-term debt	354,228	345,700	392,234
Significant Unobservable Inputs (Level 3)
Fair value measurements
Long-term debt	502,342	453,050	445,451
Significant Unobservable Inputs (Level 3) | Mortgage facilities
Fair value measurements
Long-term debt	211,637	214,132	218,315
Significant Unobservable Inputs (Level 3) | Senior secured credit facility
Fair value measurements
Long-term debt	290,705	238,918	227,136
Carrying Value
Fair value measurements
Long-term debt	907,649	857,751	851,138
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	209,652	211,541	216,710
Carrying Value | Senior secured credit facility
Fair value measurements
Long-term debt	$ 290,705	$ 238,918	$ 227,136