Pension and Postretirement Benefits Other Than Pension Plans

6 Months Ended

Jun. 30, 2018

Retirement Benefits [Abstract]

Pension and Postretirement Benefits Other Than Pension Plans

10. PENSION AND POSTRETIREMENT BENEFITS OTHER THAN PENSION PLANS:

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

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017
Interest cost	$	803		$	901		$	1,614		$	1,815
Expected return on plan assets		(1,070	)		(1,011	)		(2,172	)		(2,047	)
Amortization of net actuarial loss		264			297			519			579
Total net periodic pension (income) expense	$	(3	)	$	187		$	(39	)	$	347

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						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017
Interest cost	$	24		$	28		$	48		$	54
Amortization of net actuarial loss		65			66			129			123
Amortization of prior service credit		(329	)		(329	)		(657	)		(657	)
Total net postretirement benefit income	$	(240	)	$	(235	)	$	(480	)	$	(480	)