Employee Benefit Plans

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Employee Benefit Plans

EMPLOYEE BENEFIT PLANS

The following table summarizes key information related to the Company's pension plans and other postretirement benefits:

	Pension Benefits						Pension Benefits						Other Postretirement Benefits						Other Postretirement Benefits
	Three Months Ended						Nine Months Ended						Three Months Ended						Nine Months Ended
	September 30,						September 30,						September 30,						September 30,
	2016			2015			2016			2015			2016			2015			2016			2015
Service cost — benefits earned during the period	$	137		$	133		$	411		$	398		$	1		$	2		$	3		$	6
Interest cost on projected benefit obligation	1,355			1,205			4,065			3,803			97			93			291			278
Expected return on assets	(1,519		)	(1,814		)	(4,557		)	(5,627		)	—			—			—			—
Settlement loss	—			—			—			1,607			—			—			—			—
Amortization of net loss (gain)	464			254			1,392			823			(19		)	(24		)	(57		)	(73		)
Net expense (income)	$	437		$	(222	)	$	1,311		$	1,004		$	79		$	71		$	237		$	211