Pension and Other Postretirement Employee Benefits

3 Months Ended

Mar. 31, 2019

General Discussion Of Pension And Other Postretirement Benefits [Abstract]

Pension and Other Postretirement Employee Benefits

NOTE 15. PENSION AND OTHER POSTRETIREMENT EMPLOYEE BENEFITS

The following tables detail the components of net periodic cost (benefit) of our pension plans and other postretirement employee benefits (OPEB):

	Three Months Ended March 31,
	Pension						OPEB
(in thousands)	2019			2018			2019			2018
Service cost	$	2,021		$	1,913		$	105		$	44
Interest cost		4,539			3,914			419			319
Expected return on plan assets		(5,554	)		(4,708	)		—			—
Amortization of prior service cost (credit)		53			46			(2,211	)		(2,219	)
Amortization of actuarial loss		3,427			4,150			307			355
Net periodic cost (benefit)	$	4,486		$	5,315		$	(1,380	)	$	(1,501	)

During the three months ended March 31, 2019 and 2018, funding of pension and other postretirement employee benefits plans was $1.7 million and $9.2 million, respectively.