Pension Plans and Other Postretirement Benefits (Tables)

6 Months Ended

Mar. 30, 2019

Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract]

Components of Net Periodic Benefit Costs

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

	Pension Benefits
	Three Months Ended						Six Months Ended
	March 30,			March 31,			March 30,			March 31,
	2019			2018			2019			2018
Interest cost	$	985		$	944		$	1,971		$	1,888
Expected return on plan assets		(430	)		(473	)		(861	)		(947	)
Amortization of net loss		867			921			1,733			1,842
Net periodic benefit cost	$	1,422		$	1,392		$	2,843		$	2,783

	Postretirement Benefits
	Three Months Ended						Six Months Ended
	March 30,			March 31,			March 30,			March 31,
	2019			2018			2019			2018
Interest cost	$	68		$	70		$	137		$	139
Amortization of prior service credits		(125	)		(124	)		(249	)		(248	)
Amortization of net (gain)		(190	)		(164	)		(380	)		(328	)
Net periodic benefit cost	$	(247	)	$	(218	)	$	(492	)	$	(437	)