Description of Busines (Detail)	Dec. 25, 2011 Country State
Description of Business [Line Items]
Number of states in which Entity operates	50
Number of countries in which Entity operates	33

The number of countries in which the entity operates as of balance sheet date.

No definition available.

Name:	us-gaap_NumberOfCountriesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant