Employee Benefit Plans Summary (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 30, 2012	Jan. 01, 2012
Defined Contribution Pension [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 1,151	$ 576
Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	724	543
Interest cost	2,363	1,926
Expected return on assets	(2,196)	(1,276)
Recognized net actuarial loss	519	23
Employee contributions	(46)	(46)
Net periodic benefit cost	1,364	1,170
Contributions made during period	$ 607	$ 824