Pension and Other Post-Retirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The Company’s net periodic benefit costs for its defined benefit pension plans and post-retirement healthcare plans for both continuing and discontinued operations are as follows (in thousands):

	Three Months Ended March 31,
	Pension Plans						Post-Retirement Healthcare Plan
	2018			2017			2018		2017
Service cost	$	—		$	—		$	30	$	39
Interest cost	7,284			8,775			32		36
Expected return on plan assets	(10,523		)	(10,930		)	—		—
Amortization of prior service cost	—			—			—		(13		)
Amortization of net (gain) loss	887			1,937			55		71
Net periodic benefit cost (income)	$	(2,352	)	$	(218	)	$	117	$	133