Nature of Business Nature of Business (Details Textuals)	Dec. 25, 2012 dough_facilities bakery-cafes
Nature of Business [Line Items]
Company Owned Bakery Cafes (in bakery-cafes)	809
Franchise Operated Bakery Cafes (in bakery-cafes)	843
Company Owned Fresh Dough Facilities (in dough facilities)	22
Franchise Operated Fresh Dough Facilities	2

The number of fresh dough facilities operated by the franchisees and operating at the end of the fiscal year.

No definition available.

Name:	pnra_FranchiseOperatedFreshDoughFacilities
Namespace Prefix:	pnra_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant