Pension and Other Postretirement Employee Benefits

6 Months Ended

Jun. 30, 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 June 30,
	Pension						OPEB
(in thousands)	2019			2018			2019			2018
Service cost	$	1,862		$	2,178		$	80		$	99
Interest cost		4,692			4,390			375			381
Expected return on plan assets		(5,541	)		(5,135	)		—			—
Amortization of prior service cost (credit)		53			47			(2,211	)		(2,220	)
Amortization of actuarial loss		3,321			4,144			200			301
Net periodic cost (benefit)	$	4,387		$	5,624		$	(1,556	)	$	(1,439	)

	Six Months Ended June 30,
	Pension						OPEB
(Dollars in thousands)	2019			2018			2019			2018
Service cost	$	3,883		$	4,091		$	185		$	143
Interest cost		9,231			8,304			794			700
Expected return on plan assets		(11,095	)		(9,843	)		—			—
Amortization of prior service cost (credit)		106			93			(4,422	)		(4,439	)
Amortization of actuarial loss		6,748			8,294			507			656
Net periodic cost (benefit)	$	8,873		$	10,939		$	(2,936	)	$	(2,940	)

During the six months ended June 30, 2019 and 2018, funding of pension and other postretirement employee benefit plans was $3.1 million and $10.4 million, respectively.