Calculation of Consideration (Parenthetical) (Detail) (Zale Corporation, USD $)	May 29, 2014
Zale Corporation
Business Acquisition [Line Items]
Common stock price per share	$ 21

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

No definition available.

Name:	us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant