Employee Benefit Plans

3 Months Ended

Mar. 31, 2012

Employee Benefit Plans [Abstract]

Employee Benefit Plans

10. Employee Benefit Plans

A summary of the net periodic benefit (credit) follows:

	Three Months Ended March  31,
	2012			2011
Service cost	$	1,040		$	2,014
Interest cost		881			344
Expected return on assets		(2,606	)		(841	)
Prior service costs		438			178
Actuarial loss		—			—
Net periodic pension cost(credit)	$	(247	)	$	1,695

The Company remeasures its plan assets and benefit obligation at each December 31. No events occurred during the three months ended March 31, 2012 which would require the Company to remeasure its plan assets or benefit obligation.