Pension and Postretirement Benefits Other Than Pension Plans (Tables)

3 Months Ended

Mar. 31, 2017

Pension Plan [Member]

Net Periodic Pension and Postretirement Benefit (Income) Expense

Net periodic pension expense reflected in the accompanying condensed consolidated statements of operations included the following components for the respective periods (in thousands):

	Three Months Ended
	March 31,
	2017			2016
Interest cost	$	914		$	977
Expected return on plan assets		(1,036	)		(1,034	)
Amortization of net actuarial loss		282			292
Total net periodic pension expense	$	160		$	235

Other Postretirement Benefit Plan [Member]

Net Periodic Pension and Postretirement Benefit (Income) Expense

Net postretirement benefit income reflected in the accompanying condensed consolidated statements of operations included the following components for the respective periods (in thousands):

	Three Months Ended
	March 31,
	2017			2016
Interest cost	$	26		$	30
Amortization of net actuarial loss		57			59
Amortization of prior service credit		(328	)		(328	)
Total net postretirement benefit income	$	(245	)	$	(239	)