Segment Information (Detail) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Nov. 01, 2015		Nov. 02, 2014		Nov. 01, 2015		Nov. 02, 2014		Feb. 01, 2015
Segment Reporting Information [Line Items]
Net revenues	[1]	$ 1,232,082		$ 1,143,162		$ 3,389,786		$ 3,156,594
Depreciation and amortization expense		41,860		41,803		125,093		121,135
Operating income (loss)		110,683		104,720		265,954		264,382
Capital expenditures		49,220		48,151		136,069		131,670
Assets		2,435,676	[2]	2,303,947	[2]	2,435,676	[2]	2,303,947	[2]	$ 2,330,277
Operating Segments | E-commerce
Segment Reporting Information [Line Items]
Net revenues	[1]	628,191		586,976		1,730,677		1,600,854
Depreciation and amortization expense		7,856		8,471		24,156		23,608
Operating income (loss)		137,828		136,617		387,863		378,365
Capital expenditures		4,819		5,451		13,337		28,326
Assets	[2]	666,993		623,674		666,993		623,674
Operating Segments | Retail
Segment Reporting Information [Line Items]
Net revenues	[1]	603,891		556,186		1,659,109		1,555,740
Depreciation and amortization expense		20,880		20,344		61,433		60,062
Operating income (loss)		49,213		49,973		117,842		117,227
Capital expenditures		25,239		29,005		68,432		63,253
Assets	[2]	1,151,657		1,087,683		1,151,657		1,087,683
Unallocated
Segment Reporting Information [Line Items]
Net revenues	[1]	0		0		0		0
Depreciation and amortization expense		13,124		12,988		39,504		37,465
Operating income (loss)		(76,358)		(81,870)		(239,751)		(231,210)
Capital expenditures		19,162		13,695		54,300		40,091
Assets	[2]	$ 617,026		$ 592,590		$ 617,026		$ 592,590

[1] Includes net revenues related to our international operations (including our operations in Canada, Australia, the United Kingdom and our franchise businesses) of approximately $80.0 million and $54.6 million for the thirteen weeks ended November 1, 2015 and November 2, 2014, respectively, and $201.7 million and $161.1 million for the thirty-nine weeks ended November 1, 2015 and November 2, 2014, respectively.

[2] Includes long-term assets related to our international operations of approximately $60.6 million and $64.4 million as of November 1, 2015 and November 2, 2014, respectively.