Restructuring Charges Restructuring (Narrative) (Details) (USD $)	3 Months Ended
	Dec. 29, 2012		Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Charges to operations	$ 15,402,000		$ 0
2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Charges to operations	15,544,000
Number of employees terminated	168
Defined benefit plan, curtailments	600,000
Historical (1)
Restructuring Cost and Reserve [Line Items]
Charges to operations	(142,000)	[1]
Employee Severance and Related Benefits | 2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Charges to operations	15,517,000
Severance costs	15,500,000
Facility Closures and Related Costs | 2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Charges to operations	$ 27,000

[1] The historical balances and activity are primarily for employee severance and related benefits related to the 2012 restructuring charges.