CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 29, 2024	Jun. 24, 2023	Jun. 29, 2024	Jun. 24, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ (17,191)	$ (5,261)	$ 118,763	$ 144,610
Other comprehensive income:
Amortization of net actuarial losses and prior service credits into earnings	169	164	507	491
Recognition in earnings of net actuarial loss for pension settlement	550	0	550	0
Other comprehensive income	719	164	1,057	491
Total comprehensive (loss) income	$ (16,472)	$ (5,097)	$ 119,820	$ 145,101