Employee Pension Benefits

6 Months Ended

Jun. 30, 2012

Employee Pension Benefits

10. Employee Pension Benefits

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)

The benefit accruals under the ESI Pension Plan and ESI Excess Pension Plan were frozen effective March 31, 2006. As a result, no service cost has been included in the net periodic pension benefit.

We did not make any contributions to the ESI Pension Plan or the ESI Excess Pension Plan in the three or six months ended June 30, 2012 or 2011. We do not expect to make any contributions to the ESI Pension Plan or the ESI Excess Pension Plan in 2012.