Employee Benefit Plans (Schedule Of Costs For The Retirement Benefit Plan) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Retirement Benefits [Abstract]
Service cost	$ 320	$ 356	$ 969	$ 1,047
Interest cost	159	108	483	317
Expected return on plan assets	(317)	(271)	(960)	(797)
Net amortization and deferral	131	249	398	731
Net periodic benefit cost	$ 293	$ 442	$ 890	$ 1,298