The Company - Effect of Corrections in Unaudited Condensed Consolidated Statements of Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Cash flows from operating activities:
Change in accounts payable and accrued expenses	$ 1,219	$ (14,604)
Net cash used in operating activities	125,055	(90,350)
Cash and cash equivalents:
Beginning of period	87,023	331,467
End of period	$ 80,150	234,668
As Reported [Member]
Cash flows from operating activities:
Change in accounts payable and accrued expenses		(30,546)
Net cash used in operating activities		(106,292)
Cash and cash equivalents:
Beginning of period		349,897
End of period		237,156
Adjustment [Member]
Cash flows from operating activities:
Change in accounts payable and accrued expenses		15,942
Net cash used in operating activities		15,942
Cash and cash equivalents:
Beginning of period		(18,430)
End of period		$ (2,488)