Employee Pension Benefits (Tables)

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Pension Benefit of Pension Plan and Excess Pension Plan

The following table sets forth the components of net periodic pension benefit of the ESI Pension Plan and ESI Excess Pension Plan in the periods indicated:

	Three Months Ended March 31,
	2016			2015
Interest cost	$	403		$	409
Expected return on assets		(1,225	)		(1,383	)
Recognized net actuarial loss		0			1
Amortization of prior service (credit)		(388	)		(389	)
Net periodic pension (benefit)	$	(1,210	)	$	(1,362	)

Schedule of Changes in Components of Accumulated Other Comprehensive Income (Loss)

The following table sets forth the changes in the components of Accumulated other comprehensive income (loss) on our Condensed Consolidated Balance Sheet in the three months ended March 31, 2016:

	Defined Benefit Pension Items
	Accumulated Other Comprehensive Income (Loss)			Income Tax Benefit (Expense)		Accumulated Other Comprehensive Income (Loss) Net of Income Tax
Balance at December 31, 2015	$	(2,869	)	$	1,176	$	(1,693	)
Amortization of:
Actuarial (gains) losses		0			0		0
Prior service costs (credits)		(388	)		149		(239	)
Balance at March 31, 2016	$	(3,257	)	$	1,325	$	(1,932	)