Summary Of Significant Accounting Policies (Schedule Of Activity In The Warranty Accrual) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Accounting Policies [Abstract]
Warranty accrual at beginning of year	$ 17,429	$ 18,859	$ 19,247
Additions from acquisitions	0	0	233
Warranties issued during current year	12,611	9,019	9,842
Adjustments to pre-existing warranties	(2,037)	(1,911)	(460)
Reductions for settling warranties	(7,759)	(8,507)	(10,016)
Foreign currency translation	(291)	(31)	13
Warranty accrual at end of year	$ 19,953	$ 17,429	$ 18,859