Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost (Credit)

The following table summarizes the components of net periodic benefit cost (credit) related to the Company’s post-retirement plans for the three month periods ended March 31, 2016 and 2015:

	Pension Plans						Medical Plan
	Three Months Ended March 31,
	2016			2015			2016		2015
Components of Net Periodic Benefit Cost (Credit):
Service cost	$	307		$	360		$	4	$	8
Interest cost		5,213			6,106			45		49
Expected return on plan assets		(7,166	)		(7,071	)
Amortization of:
Prior service cost		590			603
Net actuarial loss (gain)		989			1,146
Net periodic benefit cost (credit)	$	(67	)	$	1,144		$	49	$	57