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Retirement Plans
6 Months Ended
Mar. 31, 2013
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 and six-month periods ended March 31, 2013 and 2012 is shown in the following table. Net periodic benefit cost for each period presented is comprised of the following:

    Three Months Ended   Six Months Ended  
    March 31,   March 31,  
(In thousands)   2013   2012   2013   2012  
Defined benefit plans                  
Interest cost $ 915   905   1,829   1,810  
Expected return on assets   (1,075 ) (1,021 ) (2,149 ) (2,042 )
Amortization of:                  
Prior service cost   3   3   6   6  
Actuarial loss   492   363   984   726  
Net periodic benefit cost $ 335   250   670   500