CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 24, 2022	Sep. 25, 2021
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 123,752	$ 139,708	$ 122,793
Other comprehensive income:
Amortization of net actuarial gains (losses) and prior service credits into earnings and net change in funded status of benefit plans	1,929	4,148	7,234
Recognition in earnings of net actuarial loss for pension settlement	0	840	958
Other comprehensive income	1,929	4,988	8,192
Total comprehensive income	$ 125,681	$ 144,696	$ 130,985