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Retirement Benefit Plans
 6 Months Ended
Mar. 31, 2016
Compensation and Retirement Disclosure [Abstract]  
Retirement Benefit Plans
Retirement Benefit Plans
The Company and certain of its subsidiaries sponsor defined benefit pension plans covering some of its employees. The components of net periodic benefit cost of the Company’s defined benefit plans are as follows:
 
Three Months Ended 
 March 31,
 
Six Months Ended 
 March 31,
 
2016
 
2015
 
2016
 
2015
Service cost
$
69

 
$
37

 
$
139

 
$
73

Interest cost
256

 
244

 
512

 
487

Expected return on plan assets
(407
)
 
(418
)
 
(815
)
 
(835
)
Amortization of net loss
210

 
136

 
420

 
273

Net periodic cost
$
128

 
$
(1
)
 
$
256

 
$
(2
)

During the six months ended March 31, 2016 and 2015, the Company made no contributions to its defined benefit pension plans. The Company does not anticipate making any additional contributions to fund its defined benefit pension plans during the balance of fiscal 2016.