Shareholders' Equity (Schedule Of Shares Reserved For Future Issuance) (Details)	Sep. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class A shares reserved for issuance	11,649,498
Conversion Of Class B To Class Shares Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class A shares reserved for issuance	7,652,182
2008 Stock Appreciation Rights Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class A shares reserved for issuance	3,395,028
2003 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class A shares reserved for issuance	602,288