Defined Benefit Plans - Schedule of Changes in Projected Benefit Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Change in benefit obligation:
Projected benefit obligation at beginning of year	$ 60,607	$ 60,437
Service cost	2,003	2,153	$ 1,955
Interest cost	936	857	1,308
Assumption change	(443)	(1,783)
Experience loss	261	22
Foreign exchange rate impacts	(704)	2,433
Benefits paid – total	(2,327)	(3,010)
Settlement gain	0	502
Projected benefit obligation at end of year	60,333	60,607	60,437
Projected benefit obligation at end of year	60,333	60,607	60,437
Change in plan assets:
Fair value of plan assets at beginning of year	12,901	12,997
Actual return on plan assets	1,032	1,218
Employer contributions	87	208
Benefits paid – funded plan	(607)	(1,522)
Fair value of plan assets at end of year	13,413	12,901	12,997
Fair value of plan assets at end of year	13,413	12,901	$ 12,997
Unfunded status at end of year	(46,920)	(47,706)
Amounts recognized in the consolidated balance sheet:
Accrued benefit liability – current	(2,810)	(1,896)
Accrued benefit liability – non current	(44,110)	(45,810)
Accumulated other comprehensive loss (pre-tax)	190	456
United States
Change in benefit obligation:
Projected benefit obligation at beginning of year	18,775
Projected benefit obligation at end of year	18,070	18,775
Projected benefit obligation at end of year	18,070	18,775
Change in plan assets:
Fair value of plan assets at beginning of year	12,645
Fair value of plan assets at end of year	13,131	12,645
Fair value of plan assets at end of year	13,131	12,645
Foreign plans
Change in benefit obligation:
Projected benefit obligation at beginning of year	41,832
Projected benefit obligation at end of year	42,263	41,832
Projected benefit obligation at end of year	42,263	41,832
Change in plan assets:
Fair value of plan assets at beginning of year	256
Fair value of plan assets at end of year	282	256
Fair value of plan assets at end of year	$ 282	$ 256