Pension Plans and Other Postretirement Benefits (Tables)

6 Months Ended

Mar. 26, 2016

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 26,			March 28,			March 26,			March 28,
	2016			2015			2016			2015
Interest cost	$	1,260		$	1,282		$	2,521		$	2,564
Expected return on plan assets		(854	)		(1,228	)		(1,709	)		(2,457	)
Amortization of net loss (gain)		1,475			1,131			2,609			2,261
Net periodic benefit cost	$	1,881		$	1,185		$	3,421		$	2,368

	Postretirement Benefits
	Three Months Ended						Six Months Ended
	March 26,			March 28,			March 26,			March 28,
	2016			2015			2016			2015
Interest cost	$	130		$	143		$	260		$	288
Amortization of prior service credits		(100	)		(123	)		(200	)		(245	)
Amortization of net loss (gain)		(74	)		(49	)		(149	)		(98	)
Net periodic benefit (income)	$	(44	)	$	(29	)	$	(89	)	$	(55	)