Severance And Related Costs (Summary Of Severance Charges On Balance Sheet) (Details) - Employee Severance [Member] - USD ($) $ in Thousands	Oct. 03, 2015	Sep. 27, 2014
Restructuring Cost and Reserve [Line Items]
Total severance and related costs	$ 1,548	$ 3,376
Accrued Payroll And Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Total severance and related costs	497	1,567
Defined Benefit Pension Plan Obligation [Member]
Restructuring Cost and Reserve [Line Items]
Total severance and related costs		26
Other Long-term Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Total severance and related costs	$ 1,051	$ 1,783