Pension and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 26, 2017

Pension Plans, Defined Benefit

Pension Benefits

Schedule of Components of Net Periodic Pension Cost and Postretirement Benefit Income

The components of net periodic pension cost were as follows:

	For the Quarters Ended
	March 26, 2017								March 27, 2016
(In thousands)	Qualified Plans			Non- Qualified Plans		All Plans			Qualified Plans			Non- Qualified Plans		All Plans
Service cost	$	2,423		$	—	$	2,423		$	2,247		$	—	$	2,247
Interest cost	15,594			1,956		17,550			16,574			2,034		18,608
Expected return on plan assets	(26,136		)	—		(26,136		)	(27,790		)	—		(27,790		)
Amortization of actuarial loss	7,353			1,088		8,441			7,069			1,053		8,122
Amortization of prior service credit	(486		)	—		(486		)	(486		)	—		(486		)
Net periodic pension (income)/cost	$	(1,252	)	$	3,044	$	1,792		$	(2,386	)	$	3,087	$	701

Other Postretirement Benefit Plan

Pension Benefits

Schedule of Components of Net Periodic Pension Cost and Postretirement Benefit Income

The components of net periodic postretirement benefit income were as follows:

	For the Quarters Ended
(In thousands)	March 26, 2017			March 27, 2016
Service cost	$	92		$	104
Interest cost	470			495
Amortization of actuarial loss	905			1,026
Amortization of prior service credit	(1,939		)	(2,110		)
Net periodic postretirement benefit income	$	(472	)	$	(485	)