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Defined Benefit Plans (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Jul. 01, 2012
Jul. 03, 2011
Jul. 01, 2012
Jul. 03, 2011
Components of consolidated net periodic, deferred compensation benefit costs and contributions        
Service cost $ 667 $ 818 $ 1,966 $ 2,453
Interest cost 2,763 2,772 7,662 8,315
Expected return on assets (2,273) (2,217) (6,043) (6,650)
Recognized net actuarial loss 249 97 528 291
Employee contributions (46) (129) (139) (386)
Defined benefit plan 1,360 1,341 3,974 4,023
Contributions made during period $ 1,337 $ 3,216 $ 3,914 $ 6,227