Pension Plans and Other Postretirement Benefits (Tables)

3 Months Ended

Dec. 29, 2018

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
	December 29,			December 30,
	2018			2017
Interest cost	$	986		$	944
Expected return on plan assets		(431	)		(474	)
Amortization of net loss		866			921
Net periodic benefit cost	$	1,421		$	1,391

	Postretirement Benefits
	Three Months Ended
	December 29,			December 30,
	2018			2017
Interest cost	$	69		$	69
Amortization of prior service credits		(124	)		(124	)
Amortization of net (gain)		(190	)		(164	)
Net periodic benefit cost	$	(245	)	$	(219	)