Income Taxes - Narrative (Detail) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 28, 2018 USD ($)	Oct. 29, 2017 USD ($)	Jul. 30, 2017 USD ($)	Apr. 30, 2017 USD ($)	Jan. 29, 2017 USD ($)	Oct. 30, 2016 USD ($)	Jul. 31, 2016 USD ($)	May 01, 2016 USD ($)	Jan. 28, 2018 USD ($)	Jan. 29, 2017 USD ($)	Jan. 31, 2016 USD ($)	Feb. 01, 2015 USD ($)
Entity Location [Line Items]
Provisional income tax expense related to US tax reform									$ 59,300
One-time transition tax									58,896	$ 0	$ 0
Change in tax rate, income tax expense (benefit)									$ 398	0	0
Effective income tax percent, cash and cash equivalents									0.155
Transition tax on net foreign tax credits									0.08
Undistributed foreign earnings including amounts expected to be repatriated	$ 1,240,000								$ 1,240,000
Cash and cash equivalents	990,501				$ 734,846				990,501	734,846	501,482	$ 664,479
Income tax expense (recovery)	137,743	$ 27,696	$ 20,813	$ 15,084	61,351	$ 25,318	$ 20,912	$ 11,767	201,336	119,348	102,448
Restructuring and related costs									47,223	0	0
Income tax recovery from transfer pricing adjustment									0	10,706	4,826
Transfer pricing adjustment, income tax expense (benefit)										129,900
Net interest expense									1,700	3,500
Maximum amount Company intends to distribute to the U.S. parent entity					$ 156,000					156,000
Tax on repatriation of foreign earnings									0	(38)	7,838
Repatriated earnings										156,000	473,700
Recognition of income tax recovery									$ 0	$ 0	$ 10,455
Federal income tax at statutory rate									33.90%	35.00%	35.00%
Outside United States
Entity Location [Line Items]
Cash and cash equivalents	796,900								$ 796,900
Canadian Subsidiary
Entity Location [Line Items]
Undistributed foreign earnings including amounts expected to be repatriated	1,210,000								1,210,000
Facility closing | ivivva
Entity Location [Line Items]
Income tax expense (recovery)									(12,700)
Restructuring and related costs									47,223
Foreign
Entity Location [Line Items]
Operating loss carryforwards	$ 121,800								$ 121,800