Pension Plans and Other Postretirement Benefits - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 29, 2024	Jun. 24, 2023	Jun. 29, 2024	Jun. 24, 2023	Sep. 30, 2023
Components of net periodic benefit costs included in operating expenses [Abstract]
Contribution to defined pension benefit plan			$ 3,000	$ 3,000
Pension settlement charge			(550)	0
Estimated obligation due to full withdrawal multi employer pension plans	$ 20,389		20,389		$ 21,398
Pension Plans Defined Benefit [Member]
Components of net periodic benefit costs included in operating expenses [Abstract]
Defined benefit plan expected future benefit payments	4,000		4,000
Settlement threshold amount	3,218
Pension settlement charge	550	$ 0	550	$ 0
Pension Plans Defined Benefit [Member] | Other, Net [Member]
Components of net periodic benefit costs included in operating expenses [Abstract]
Contribution to defined pension benefit plan			3,000
Post-Retirement Benefits [Member]
Components of net periodic benefit costs included in operating expenses [Abstract]
Defined benefit plan expected future benefit payments	$ 422		422
Post-Retirement Benefits [Member] | Other, Net [Member]
Components of net periodic benefit costs included in operating expenses [Abstract]
Employer contribution for postretirement health care and life insurance			$ 256