Employee Benefit Plans (Summary of Changes in Benefit Obligations and Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018
Change in benefit obligation
Projected benefit obligation, beginning of year	$ 40,918	$ 33,909
Service cost	1,676	1,271	$ 1,282
Interest cost	299	612	640
Actuarial (gain) loss	(2,993)	8,304
Currency translation	3,119	(2,419)
Special termination benefits	137	0
Curtailments	(686)	0
Benefits paid	(800)	(759)
Projected benefit obligation, end of year	41,670	40,918	33,909
Change in plan assets
Fair value of plan assets, beginning of year	23,481	23,871
Actual return on plan assets	(805)	1,144
Employer contributions	800	759
Currency translation	1,827	(1,534)
Benefits paid	(800)	(759)
Fair value of plan assets, end of year	$ 24,503	$ 23,481	$ 23,871