FAIR VALUE MEASUREMENTS AND DERIVATIVES (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 30, 2011	Jul. 28, 2012	Jan. 28, 2012
Other liabilities
Derivative liability		$ 9,500	$ 12,500
Additional investment in restricted accounts as collateral	4,763
Recurring basis | Fair Value
Other liabilities
Derivative liability		9,494	12,540
Recurring basis | Fair Value | Cash and cash equivalents
Assets:
Assets		150,833	58,244
Recurring basis | Fair Value | Collateral investments
Assets:
Assets		17,276	17,276
Recurring basis | Fair Value | Rabbi trust assets
Assets:
Assets		3,596	3,576
Recurring basis | Fair Value Measurements Using Inputs Considered as Level 1 | Cash and cash equivalents
Assets:
Assets		150,833	58,244
Recurring basis | Fair Value Measurements Using Inputs Considered as Level 1 | Collateral investments
Assets:
Assets		17,276	17,276
Recurring basis | Fair Value Measurements Using Inputs Considered as Level 2
Other liabilities
Derivative liability		9,494	12,540
Recurring basis | Fair Value Measurements Using Inputs Considered as Level 2 | Rabbi trust assets
Assets:
Assets		$ 3,596	$ 3,576