XML 25 R12.htm IDEA: XBRL DOCUMENT v2.4.0.6
Retirement Plans
 3 Months Ended
Mar. 31, 2012
Retirement Plans [Abstract]  
Retirement Plans
5. Retirement Plans

The following table provides the components of net periodic benefit cost for our pension plans for the three-month periods ended March 31, 2012 and 2011, respectively (in thousands):

 

                 
    Three Months Ended March 31,  
    2012     2011  

Service cost

   $ 1,147     $ 1,066  

Interest cost

     830       753  

Expected return on plan assets

     (682 )      (616 ) 

Loss amortization

     576       154  
   

 

 

    

 

 

  

Net periodic benefit cost

   $ 1,871     $ 1,357  
   

 

 

    

 

 

  

During the three months ended March 31, 2012, we contributed $1.0 million to our pension plans. During the remainder of fiscal 2012, we expect to contribute an additional $6.0 million to our pension plans.