Employee Pension Benefits (Tables)

6 Months Ended

Jun. 30, 2012

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 for the periods indicated:

	Three Months						Six Months
	Ended June 30,						Ended June 30,
	2012			2011			2012			2011
Interest cost	$	502		$	598		$	1,032		$	1,196
Expected return on assets		(1,110	)		(1,147	)		(2,257	)		(2,294	)
Recognized net actuarial loss		663			476			1,358			952
Amortization of prior service (credit)		(389	)		(346	)		(777	)		(692	)
Net periodic pension (benefit)		($334)			($419)			($644)			($838)