Reconciliation of Total Segment Operating Income to Consolidated Operating Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Feb. 02, 2013	Oct. 27, 2012	Jul. 28, 2012	Apr. 28, 2012	Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Segment Reporting, Reconciliation of Net Income (Loss) Segment to Consolidated [Line Items]
Total segment operating income									$ 238,996	$ 199,266	$ 177,465
Impairment of assets											12,262
Severance and transaction-related costs	1,660	(29)	1,144	53	5,979	180	426	343	2,828	6,928	741
Operating income									$ 236,168	$ 192,338	$ 164,462