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Pension Benefits (Tables)
 6 Months Ended
Dec. 31, 2015
Pension Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Components Of Net Periodic Benefit Income
The following table summarizes the components of net periodic benefit income for our pension plans:
 
Three Months Ended 
 December 31,
 
Six Months Ended 
 December 31,
 
2015
 
2014
 
2015
 
2014
Components of net periodic benefit income
 
 
 
 
 
 
 
Interest cost
$
421

 
$
403

 
$
842

 
$
806

Expected return on plan assets
(630
)
 
(658
)
 
(1,260
)
 
(1,316
)
Amortization of unrecognized net loss
135

 
107

 
270

 
214

Net periodic benefit income
$
(74
)
 
$
(148
)
 
$
(148
)
 
$
(296
)