XML 24 R28.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Significant Accounting Policies (Details)
 3 Months Ended
Mar. 23, 2012
weeks
Weeks in First Three Reporting Quarters (in weeks) 12
Buildings, Land Improvements, and Building Improvements [Member]
  
Property, Plant and Equipment, Useful Life, Minimum (in years) 15
Property, Plant and Equipment, Useful Life, Maximum (in years) 40
Furniture, Fixtures and Equipment [Member]
  
Property, Plant and Equipment, Useful Life, Minimum (in years) 1
Property, Plant and Equipment, Useful Life, Maximum (in years) 10
Minimum [Member]
  
Weeks in Fourth Reporting Quarter (in weeks) 16
Maximum [Member]
  
Weeks in Fourth Reporting Quarter (in weeks) 17