Acquisitions - Additional Information (Detail) - USD ($)			3 Months Ended		9 Months Ended
	May. 29, 2014	Feb. 19, 2014	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Business Acquisition [Line Items]
Amortization of financing costs			$ 1,000,000	$ 1,000,000	$ 2,600,000	$ 6,500,000
Zale Corporation
Business Acquisition [Line Items]
Percentage of voting interests acquired	100.00%
Consideration received by acquiree shareholders (in dollars per share)	$ 21.00
Total consideration transferred	$ 1,458,000,000
Cash paid to extinguish Zale Corporation outstanding debt as of May 29, 2014	478,200,000
Face amount	1,400,000,000
Deferred revenue recognition period of extended service plan sales						10 years
Initial accounting incomplete, adjustment, financial liabilities						$ 1,400,000,000
Acquisition related costs				$ 9,400,000		48,600,000
Zale Corporation | Unsecured Bridge Facility
Business Acquisition [Line Items]
Face amount		$ 800,000,000
Debt instrument, maturity period		364 days
Amortization of financing costs					$ 4,000,000	$ 4,000,000
Zale Corporation | Senior Unsecured Notes Due in 2024 | Senior Notes
Business Acquisition [Line Items]
Face amount	400,000,000
Zale Corporation | Two-Year Revolving Asset-Backed Variable Funding Notes | Revolving Credit Facility
Business Acquisition [Line Items]
Face amount	$ 600,000,000
Debt instrument, maturity period	2 years
Zale Corporation | Five-Year Unsecured Term Loan Facility | Credit Facility
Business Acquisition [Line Items]
Face amount	$ 400,000,000
Debt instrument, maturity period	5 years