Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2020	Sep. 29, 2019
Reclassifications out of accumulated other comprehensive income (loss)
Beginning balance	$ 989,464	$ 967,100
Amounts reclassified from accumulated other comprehensive income
Ending balance	1,037,373	989,464
Accumulated Other Comprehensive Income (Loss)
Reclassifications out of accumulated other comprehensive income (loss)
Beginning balance	(160,584)	(127,350)
Other comprehensive income (loss) before reclassifications	2,837	(32,356)
Amounts reclassified from accumulated other comprehensive income
Net current-period other comprehensive income (loss)	(1,202)	(33,234)
Ending balance	(161,786)	(160,584)
Accumulated Other Comprehensive Income (Loss) | Interest rate contracts
Amounts reclassified from accumulated other comprehensive income
Interest rate contracts, net of tax	(4,039)	(878)
Foreign Currency Translation Adjustments
Reclassifications out of accumulated other comprehensive income (loss)
Beginning balance	(149,711)	(128,602)
Other comprehensive income (loss) before reclassifications	3,436	(21,109)
Amounts reclassified from accumulated other comprehensive income
Net current-period other comprehensive income (loss)	3,436	(21,109)
Ending balance	(146,275)	(149,711)
Foreign Currency Translation Adjustments | Interest rate contracts
Amounts reclassified from accumulated other comprehensive income
Interest rate contracts, net of tax	0	0
Gain (Loss) on Derivative Instruments
Reclassifications out of accumulated other comprehensive income (loss)
Beginning balance	(10,873)	1,252
Other comprehensive income (loss) before reclassifications		(11,247)
Amounts reclassified from accumulated other comprehensive income
Net current-period other comprehensive income (loss)		(12,125)
Ending balance		(10,873)
Gain (Loss) on Derivative Instruments | Interest rate contracts
Amounts reclassified from accumulated other comprehensive income
Interest rate contracts, net of tax		$ (878)
Gain (Loss) on Derivative Instruments
Reclassifications out of accumulated other comprehensive income (loss)
Other comprehensive income (loss) before reclassifications	(599)
Amounts reclassified from accumulated other comprehensive income
Net current-period other comprehensive income (loss)	(4,638)
Ending balance	(15,511)
Gain (Loss) on Derivative Instruments | Interest rate contracts
Amounts reclassified from accumulated other comprehensive income
Interest rate contracts, net of tax	$ (4,039)