Pensions and Other Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit Plan Cost

The composition of the net periodic benefit cost for the three months ended March 31, 2019 and 2018, was as follows:

	Pension plans		Other postretirement benefits
(in thousands)	2019	2018	2019	2018
Components of net periodic benefit cost:
Service cost	$632	$699	$47	$58
Interest cost	1,794	1,820	528	507
Expected return on assets	(2,057)	(2,247)	-	-
Amortization of prior service cost/(credit)	17	8	(1,122)	(1,122)
Amortization of net actuarial loss	564	558	557	739
Net periodic benefit cost	$950	$838	$10	$182