Reconciliation of Total Segment Operating Income to Consolidated Operating Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended									12 Months Ended
	Jan. 31, 2015		Nov. 01, 2014	Aug. 02, 2014	May 03, 2014	Feb. 01, 2014	Nov. 02, 2013	Aug. 03, 2013	May 04, 2013	Jan. 31, 2015		Feb. 01, 2014	Feb. 02, 2013
Segment Reporting Information [Line Items]
Impairment of assets	$ 135,157	[1]								$ 135,157	[1]	$ 0	$ 0
Severance and transaction-related costs	3,721		751	2,182	1,582	2,336	978	889	915	8,236		5,118	2,828
Operating income										11,460		171,772	236,168
Operating Segments
Segment Reporting Information [Line Items]
Operating income										$ 154,853		$ 176,890	$ 238,996

[1] Represents an impairment charge relating to goodwill and tradenames. See Note 3 - Impairment Charges for detail of impairment charges.