Employee Benefit Plans

9 Months Ended

Sep. 30, 2017

Compensation and Retirement Disclosure [Abstract]

Employee Benefit Plans

Employee Benefit Plans

Components of the net periodic pension and postretirement benefit cost are as follows:

	Successor			Predecessor
	September 1, 2017 Through September 30, 2017			July 1, 2017 Through August 31, 2017			Three Months Ended September 30, 2016
Service cost	$	38		$	71		$	112
Interest cost	397			806			1,312
Expected return on assets	(692		)	(1,356		)	(2,035		)
Amortization of prior service cost	—			33			50
Amortization of actuarial loss	—			110			406
Net periodic pension and postretirement benefit (credit) cost	$	(257	)	$	(336	)	$	(155	)
Contributions paid	$	213		$	—		$	—

	Successor			Predecessor
	September 1, 2017 Through September 30, 2017			January 1, 2017 Through August 31, 2017			Nine Months Ended September 30, 2016
Service cost	$	38		$	282		$	336
Interest cost	397			3,227			3,936
Expected return on assets	(692		)	(5,425		)	(6,105		)
Amortization of prior service cost	—			133			150
Amortization of actuarial loss	—			438			1,218
Net periodic pension and postretirement benefit (credit) cost	$	(257	)	$	(1,345	)	$	(465	)
Contributions paid	$	213		$	356		$	—

The Company anticipates making no additional cash contributions to its pension plans in the remainder of 2017.

Employee retirement contracts and collective bargaining agreements were honored by the Company after emergence from the Chapter 11 cases on the Effective Date.

Upon the adoption of fresh-start accounting, the Company remeasured its obligations under its defined benefit pension and other postretirement plans. The re-measurement increased the Company's defined benefit pension and other postretirement benefit obligations by approximately $4,274 and was driven primarily by a change in the discount rate.