Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Treasury stock	Retained earnings	Accumulated other comprehensive (loss) income
Beginning of period (in shares) at Sep. 30, 2023		27,466,000
Exercise of stock options and vesting of other share-based awards		38,000
Treasury shares purchased (in shares)		0
End of period (in shares) at Dec. 30, 2023		27,504,000
Beginning of period at Sep. 30, 2023	$ 1,214,382	$ 543	$ 661,270	$ (1,134,429)	$ 1,711,328	$ (24,330)
Exercise of stock options and vesting of other share-based awards		0
Share-based compensation expense			5,178
Exercise of stock options and vesting of other share-based awards, including tax withholding			(2,906)
Treasury shares purchased				0
Net income	29,215				29,215
Other comprehensive (loss) income	20,886					20,886
End of period at Dec. 30, 2023	$ 1,266,755	$ 543	663,542	(1,134,429)	1,740,543	(3,444)
Beginning of period (in shares) at Sep. 28, 2024	27,122,000	27,122,000
Exercise of stock options and vesting of other share-based awards		25,000
Treasury shares purchased (in shares)		(85,000)
End of period (in shares) at Dec. 28, 2024	27,062,000	27,062,000
Beginning of period at Sep. 28, 2024	$ 1,324,825	$ 545	680,638	(1,190,115)	1,823,143	10,614
Exercise of stock options and vesting of other share-based awards		0
Share-based compensation expense			6,990
Exercise of stock options and vesting of other share-based awards, including tax withholding			(3,073)
Treasury shares purchased				(12,824)
Net income	37,267				37,267
Other comprehensive (loss) income	(34,116)					(34,116)
End of period at Dec. 28, 2024	$ 1,319,069	$ 545	$ 684,555	$ (1,202,939)	$ 1,860,410	$ (23,502)