Selected Quarterly Financial Data (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
Interim Reporting [Line Items]
Net sales	$ 493,398		$ 363,388		$ 359,617		$ 340,617		$ 434,907		$ 356,000		$ 358,547		$ 346,446		$ 1,557,020		$ 1,495,900		$ 1,426,397
Gross profit	268,854		183,805		181,751		166,614		229,378		183,495		183,165		175,087		801,024		771,125		741,286
Severance and transaction related costs	1,660		(29)		1,144		53		5,979		180		426		343		2,828		6,928		741
Gain on early debt extinguishment			(5,105)				(4,602)		1,937		3,986		233		249		(9,707)		6,405		13,388
Interest expense, net	60,854		54,042		48,879		47,022		42,362		43,543		44,335		46,235		210,797		176,475		157,706
Income tax (benefit) expense	7,806	[1]	4,398	[1]	3,048	[1]	(870)	[1]	4,775	[2]	3,193	[2]	3,400	[2]	(732)	[2]	14,382	[1]	10,636	[2]	9,791
Net income (loss)	$ 42,206		$ (13,730)		$ (7,273)		$ (19,921)		$ 39,474		$ 1,898		$ (10,143)		$ (19,597)		$ 1,282		$ 11,632		$ 4,323

[1] Includes a $14.7 million charge for an increase in the valuation allowance related to deferred tax assets.

[2] Includes a $3.6 million charge for an increase in the valuation allowance related to deferred tax assets.