Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2012

Summary of Net Periodic Benefit (Credit)

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

	Three Months Ended						Six Months Ended
	June 30, 2012			June 30, 2011			June 30, 2012			June 30, 2011
Service cost	$	(615	)	$	999		$	425		$	3,013
Interest cost		(491	)		307			390			651
Expected return on assets		1,382			(787	)		(1,225	)		(1,628	)
Prior service costs		(220	)		173			218			351
Actuarial loss		—			—			—			—
Curtailment charges		—			1,713			—			1,713
Settlement charges		963						963
Net periodic pension cost	$	1,019		$	2,405		$	771		$	4,100