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RETIREMENT PLANS
 3 Months Ended
Dec. 31, 2018
Retirement Benefits [Abstract]  
RETIREMENT PLANS
11.
RETIREMENT PLANS
 
A summary of net periodic benefit expense for the Company’s defined benefit plans for the three-month periods ended December 31, 2018 and 2017 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)
 
2018
 
 
2017
 
Defined benefit plans
 
 
 
 
 
 
 
 
Interest cost
 
$
875
 
 
 
820
 
Expected return on assets
 
 
(1,086
)
 
 
(975
)
Amortization of:
 
 
 
 
 
 
 
 
Prior service cost
 
 
-
 
 
 
-
 
Actuarial loss
 
 
487
 
 
 
549
 
Net periodic benefit cost
 
$
276
 
 
 
394