Retirement Plans

6 Months Ended

Jun. 30, 2011

Retirement Plans [Abstract]

Retirement Plans

6. Retirement Plans

     The following table provides the components of net periodic benefit cost for our pension plans for the three-month and six-month periods ended June 30, 2011 and 2010, respectively (in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2011			2010			2011			2010
Service cost	$	1,066		$	883		$	2,132		$	1,766
Interest cost		753			640			1,506			1,280
Expected return on plan assets		(616	)		(477	)		(1,232	)		(955	)
Loss amortization		154			248			308			497
Net periodic benefit cost	$	1,357		$	1,294		$	2,714		$	2,588

     During the six-month period ended June 30, 2011, we contributed $1.1 million to our pension plans. During the remainder of the fiscal year ending December 31, 2011 (“fiscal 2011”), we expect to contribute an additional $1.9 million to our pension plans.