Pension Plans and Other Postretirement Benefits (Tables)

9 Months Ended

Jun. 27, 2020

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 27,			June 29,			June 27,			June 29,
	2020			2019			2020			2019
Interest cost	$	720		$	987		$	2,160		$	2,958
Expected return on plan assets		(321	)		(432	)		(961	)		(1,293	)
Amortization of net loss		862			867			2,586			2,600
Pension settlement charge		900			—			900			—
Net periodic benefit cost	$	2,161		$	1,422		$	4,685		$	4,265

	Postretirement Benefits
	Three Months Ended						Nine Months Ended
	June 27,			June 29,			June 27,			June 29,
	2020			2019			2020			2019
Interest cost	$	38		$	69		$	113		$	206
Amortization of prior service credits		(125	)		(125	)		(373	)		(374	)
Amortization of net (gain)		(196	)		(190	)		(590	)		(570	)
Net periodic benefit cost	$	(283	)	$	(246	)	$	(850	)	$	(738	)