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Retirement Plans
3 Months Ended
Dec. 31, 2011
Retirement Plans [Abstract]  
Retirement Plans

9. RETIREMENT PLANS

A summary of net periodic benefit expense for the Company's defined benefit plans for the three -month periods ended December 31, 2011 and 2010 is shown in the following table. Net periodic benefit cost for each period presented is comprised of the following:

  Three Months Ended
December 31,
 
(In thousands)   2011   2010  
Defined benefit plans          
Interest cost $ 905   928  
Expected return on assets   (1,021 ) (1,032 )
Amortization of:          
Prior service cost   3   3  
Actuarial loss   363   356  
Net periodic benefit cost $ 250   255