Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 27, 2026	Jun. 28, 2025	Jun. 27, 2026	Jun. 28, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			$ 255,415
Other comprehensive income, gross	$ 13,094		13,094
Settlement loss included in earnings	19,562		19,562
Ending Balance	654,892		654,892
Total AOCL
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(28,067)	$ (26,311)	(28,247)	$ (26,416)
Other comprehensive income, gross	12,260		12,260
Settlement loss included in earnings	19,562		19,562
Amounts reclassified and included in earnings	79	70	315	209
Total before taxes	31,901	70	32,137	209
Income taxes	(4,617)	(17)	(4,673)	(51)
Ending Balance	(783)	(26,258)	(783)	(26,258)
Defined Benefit Pension Plan (Note 14)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(28,067)	(26,311)	(28,247)	(26,416)
Amounts reclassified and included in earnings	79	70	315	209
Total before taxes	32,735	70	32,971	209
Income taxes	(4,826)	(17)	(4,882)	(51)
Ending Balance	(158)	(26,258)	(158)	(26,258)
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	0	0	0	0
Other comprehensive income, gross	(834)		(834)
Total before taxes	(834)		(834)
Income taxes	209		209
Ending Balance	$ (625)	$ 0	$ (625)	$ 0

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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