Pension Plans and Other Postretirement Benefits (Tables)

9 Months Ended

Jun. 26, 2021

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Costs

The following table provides the components of net periodic benefit costs:

	Pension Benefits
	Three Months Ended						Nine Months Ended
	June 26,			June 27,			June 26,			June 27,
	2021			2020			2021			2020
Interest cost	$	534		$	720		$	1,602		$	2,160
Expected return on plan assets		(319	)		(321	)		(957	)		(961	)
Amortization of net loss		899			862			2,695			2,586
Pension settlement charge		142			900			712			900
Net periodic benefit cost	$	1,256		$	2,161		$	4,052		$	4,685

	Postretirement Benefits
	Three Months Ended						Nine Months Ended
	June 26,			June 27,			June 26,			June 27,
	2021			2020			2021			2020
Interest cost	$	20		$	38		$	58		$	113
Amortization of prior service credits		(124	)		(125	)		(373	)		(373	)
Amortization of net (gain)		(182	)		(196	)		(543	)		(590	)
Net periodic benefit cost	$	(286	)	$	(283	)	$	(858	)	$	(850	)