Pension and Other Postretirement Obligations (Tables)

6 Months Ended

Jul. 01, 2018

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Costs

The following table provides the components of net periodic benefit costs for our pension and other postretirement benefit plans:

	Pension Obligations						Other Postretirement Obligations
Three Months Ended	July 1, 2018			July 2, 2017			July 1, 2018		July 2, 2017
	(In thousands)
Service cost	$	942		$	1,251		$	13	$	13
Interest cost	1,905			1,874			260		329
Expected return on plan assets	(2,508		)	(2,567		)	—		—
Amortization of prior service credit	(12		)	(9		)	—		—
Actuarial losses	612			645			—		23
Net periodic benefit cost	$	939		$	1,194		$	273	$	365
Six Months Ended
Service cost	$	2,075		$	2,343		$	26	$	27
Interest cost	3,781			3,569			524		656
Expected return on plan assets	(5,028		)	(4,928		)	—		—
Amortization of prior service credit	(22		)	(20		)	—		—
Actuarial losses	1,277			1,233			—		45
Net periodic benefit cost	$	2,083		$	2,197		$	550	$	728