Other Comprehensive Income (Loss) (Schedule of Changes in Each Component of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	$ 484,059	$ 477,932	$ 428,777
Other comprehensive net gain (loss) reclassifications	13,281	(17,423)	1,620
Net (gain) loss reclassified to earnings	211	(2,526)	(231)
Other comprehensive income (loss)	13,492	(19,949)	1,389
Reclassification to retained earnings	31,768	315,329
Balance at the end of the year	221,183	484,059	477,932
Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year		(6,227)	0
Reclassification to retained earnings			640
Balance at the end of the year			(6,227)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	(8,208)	1,772	3,946
Other comprehensive net gain (loss) reclassifications	16,986	(9,980)	(2,174)
Net (gain) loss reclassified to earnings	0	0	0
Other comprehensive income (loss)	16,986	(9,980)	(2,174)
Balance at the end of the year	8,778	(8,208)	1,772
Foreign Currency Translation Adjustments | Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassification to retained earnings			0
Unrealized Derivative Instrument Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	1,274	6,320	1,953
Other comprehensive net gain (loss) reclassifications	(3,968)	(2,141)	4,325
Net (gain) loss reclassified to earnings	(645)	(2,905)	(598)
Other comprehensive income (loss)	(4,613)	(5,046)	3,727
Balance at the end of the year	(3,339)	1,274	6,320
Unrealized Derivative Instrument Adjustments | Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassification to retained earnings			640
Defined Benefit Pension Plan Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	(11,539)	(6,616)	(6,452)
Other comprehensive net gain (loss) reclassifications	263	(5,302)	(531)
Net (gain) loss reclassified to earnings	856	379	367
Other comprehensive income (loss)	1,119	(4,923)	(164)
Balance at the end of the year	(10,420)	(11,539)	(6,616)
Defined Benefit Pension Plan Adjustments | Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassification to retained earnings			0
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year	(18,473)	1,476	(553)
Other comprehensive income (loss)	13,492	(19,949)	1,389
Balance at the end of the year	$ (4,981)	$ (18,473)	1,476
Accumulated Other Comprehensive Income (Loss) | Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the year			$ 640