Employee Benefit Plans

3 Months Ended

Mar. 31, 2012

Employee Benefit Plans [Abstract]

Employee Benefit Plans

10. Employee Benefit Plans

Components of Net Periodic Benefit Cost

Total net periodic benefit cost for the three months ended March 31, 2012 and 2011 includes the following components:

	Pension Benefits						Other Postretirement Benefits
	2012			2011			2012			2011
Service cost	$	26		$	28		$	1		$	1
Interest cost		63			64			5			5
Expected return on plan assets		(78	)		(74	)		(3	)		(4	)
Amortization of prior service credit		(2	)		(2	)		—			—
Amortization of actuarial loss		53			37			—			—
Net periodic benefit cost	$	62		$	53		$	3		$	2