Pension and Other Postretirement Employee Benefit Plans

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Employee Benefit Plans

The following table details the components of net periodic cost of our company-sponsored pension and OPEB plans for the periods presented:



	Three Months Ended March 31,
(In thousands)	2016			2015			2016			2015
	Pension Benefit Plans						Other Postretirement Employee Benefit Plans
Service cost	$	398		$	316		$	74		$	148
Interest cost	3,628			3,490			766			1,048
Expected return on plan assets	(4,883		)	(4,984		)	—			—
Amortization of prior service cost (credit)	5			18			(428		)	(545		)
Amortization of actuarial loss (gain)	2,884			3,083			(1,383		)	—
Net periodic cost	$	2,032		$	1,923		$	(971	)	$	651

During the three months ended March 31, 2016, we made no contributions to our qualified pension plans. We do not expect to make contributions in 2016.

During the three months ended March 31, 2016, we made contributions of $0.1 million to our company-sponsored non-qualified pension plan, and we estimate contributions will total $0.4 million in 2016. We do not anticipate funding our OPEB plans in 2016 except to pay benefit costs as incurred during the year by plan participants.

During the three months ended March 31, 2016, $0.7 million of net periodic pension and OPEB costs were charged to "Cost of sales," and $0.4 million were charged to "Selling, general and administrative expenses" in the accompanying Consolidated Statements of Operations. During the three months ended March 31, 2015, $1.8 million of net periodic pension and OPEB costs were charged to "Cost of sales" and $0.8 million were charged to "Selling, general and administrative expenses" in the accompanying Consolidated Statements of Operations.