Accumulated Other Comprehensive Income (Loss) (Changes in AOCI by Component) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period			$ 1,860,633
Other comprehensive income (loss), net of tax	$ 54,996	$ (4,591)	41,766	$ 17,065
End of period	1,943,701	1,793,792	1,943,701	1,793,792
Accumulated foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period			(95,538)
OCI before reclassifications			23,709
Amounts reclassified from AOCIL			10,963
Other comprehensive income (loss), net of tax			34,672
End of period	(60,866)		(60,866)
Accumulated retirement liability
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period			(108,231)
OCI before reclassifications			(613)
Amounts reclassified from AOCIL			6,541
Other comprehensive income (loss), net of tax			5,928
End of period	(102,303)		(102,303)
Accumulated gain (loss) on derivatives
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period			0
OCI before reclassifications			1,456
Amounts reclassified from AOCIL			(290)
Other comprehensive income (loss), net of tax			1,166
End of period	1,166		1,166
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of period	(216,999)	(232,953)	(203,769)	(254,609)
OCI before reclassifications			24,552
Amounts reclassified from AOCIL			17,214
Other comprehensive income (loss), net of tax	54,996	(4,591)	41,766	17,065
End of period	$ (162,003)	$ (237,544)	$ (162,003)	$ (237,544)