Pension and Post-Retirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2018

Compensation And Retirement Disclosure [Abstract]

Summary of Retrospective Presentation of Periodic Pension Cost in Condensed Consolidated Statement of Operations

In accordance with the adoption of ASU 2017-07, the Company has retrospectively revised the presentation of the non-service components of periodic pension cost to “Interest and other expense, net” in the condensed consolidated statement of operations, while service cost remains in “Warehouse, marketing and administrative expense.” A summary of the effect for periods presented was as follows (in thousands):

	Three months ended June 30, 2017							Six months ended June 30, 2017
Condensed consolidated statement of loss	As reported		As revised		Effect of change			As reported			As revised			Effect of change
Warehousing, marketing and administrative expenses	$	161,695	$	160,972	$	(723	)	$	334,717		$	333,270		$	(1,447	)
Operating income (loss)		15,869		16,592		723			(170,314	)		(168,867	)		1,447
Interest and other expense, net		6,299		7,022		723			13,038			14,485			1,447
Income (loss) before income taxes		9,570		9,570		-			(183,352	)		(183,352	)		-

Schedule of Components of Net Periodic Pension Cost

A summary of net periodic pension cost related to the Company’s pension plans for the three and six months ended June 30, 2018 and 2017 was as follows (in thousands):

	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2018			2017			2018			2017
Service cost - benefit earned during the period	$	444		$	321		$	888		$	642
Interest cost on projected benefit obligation		1,769			1,862			3,538			3,724
Expected return on plan assets		(2,266	)		(2,272	)		(4,532	)		(4,544	)
Amortization of prior service cost		101			72			202			144
Amortization of actuarial loss		1,304			1,062			2,608			2,124
Total non-service cost	$	908		$	723		$	1,816		$	1,447
Net periodic pension cost	$	1,352		$	1,045		$	2,704		$	2,090