Employee Benefit Plans

6 Months Ended

Jun. 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						Six Months Ended						Three Months Ended						Six Months Ended
	June 30,						June 30,						June 30,						June 30,
	2016			2015			2016			2015			2016			2015			2016			2015
Service cost — benefits earned during the period	$	137		$	133		$	274		$	265		$	1		$	2		$	2		$	4
Interest cost on projected benefit obligation	1,355			1,280			2,710			2,598			97			93			194			185
Expected return on assets	(1,519		)	(1,888		)	(3,038		)	(3,813		)	—			—			—			—
Settlement loss	—			1,607			—			1,607			—			—			—			—
Amortization of net loss (gain)	464			278			928			569			(19		)	(24		)	(38		)	(48		)
Net expense	$	437		$	1,410		$	874		$	1,226		$	79		$	71		$	158		$	141