Shareholders' Equity (Schedule Of Shares Reserved For Future Issuance) (Details)	Sep. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class A shares reserved for issuance	12,152,780
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	7,666,653
2008 Stock Appreciation Rights Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class A shares reserved for issuance	3,693,241
2003 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class A shares reserved for issuance	742,262
1998 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class A shares reserved for issuance	50,624