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STOCK-BASED COMPENSATION Stock Incentive Plan (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jan. 29, 2012	Jan. 30, 2011	Jan. 31, 2010
Stock-based compensation expense	$ 40,938	$ 33,281	$ 14,456
Tax benefits realized, stock plan awards	19,415	14,077	2,900
Excess tax benefits from awards under stock plans	$ 11,593	$ 9,333	$ 1,269
Total stock awards available for grant	2,572,000
Stock Option [Member]
Reduction in number of shares available for grant	1
Awarded Before April 29, 2009 [Member] \| Restricted Stock Units (RSUs) [Member]
Reduction in number of shares available for grant	3
Awarded On or After April 29, 2009 [Member] \| Restricted Stock Units (RSUs) [Member]
Reduction in number of shares available for grant	2

Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from equity-based compensation recognized in financial statements. This element represents the cash inflow reported in the enterprise's financing activities.

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