FAIR VALUE MEASUREMENTS AND DERIVATIVES (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 29, 2011	Oct. 27, 2012	Jan. 28, 2012
Other liabilities
Derivative liability		$ 2,300	$ 12,500
Additional investment in restricted accounts as collateral	4,763
Recurring basis | Fair Value
Other liabilities
Derivative liability		2,266	12,540
Recurring basis | Fair Value | Cash and cash equivalents
Assets:
Assets		78,667	58,244
Recurring basis | Fair Value | Collateral investments
Assets:
Assets		17,276	17,276
Recurring basis | Fair Value | Rabbi trust assets
Assets:
Assets		3,654	3,576
Recurring basis | Fair Value Measurements Using Inputs Considered as Level 1 | Cash and cash equivalents
Assets:
Assets		78,667	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		2,266	12,540
Recurring basis | Fair Value Measurements Using Inputs Considered as Level 2 | Rabbi trust assets
Assets:
Assets		$ 3,654	$ 3,576