Pension and Postretirement Benefit Obligations (Tables)

3 Months Ended

Mar. 31, 2019

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Pension Cost

The components of net periodic pension cost were as follows:

	First Quarter
(in thousands)	2019			2018
Service cost	$	1,207		$	1,412
Interest cost		3,063			2,856
Expected return on plan assets		(2,574	)		(3,852	)
Recognized net actuarial loss		901			933
Amortization of prior service cost		5			6
Net periodic pension cost	$	2,602		$	1,355

Components of Net Periodic Postretirement Benefit Cost

The components of net periodic postretirement benefit cost were as follows:

	First Quarter
(in thousands)	2019			2018
Service cost	$	389		$	502
Interest cost		693			696
Recognized net actuarial loss		196			499
Amortization of prior service cost		(324	)		(462	)
Net periodic postretirement benefit cost	$	954		$	1,235