Description of Business (Details) (PHI [Member])	12 Months Ended
Dec. 25, 2012 States
Franchisor Disclosure [Line Items]
Number of states in which entity operates	28
Franchisor operations, percent	20.00%
domestic system measured by units, percent	21.00%
Entity Operated Units [Member]
Franchisor Disclosure [Line Items]
Number of estaurants	1,227

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

No definition available.

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