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Pension Benefits (Tables) (Pension Benefits [Member])
 9 Months Ended
Mar. 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 
 March 31,
 
Nine Months Ended 
 March 31,
 
2015
 
2014
 
2015
 
2014
Components of net periodic benefit income
 
 
 
 
 
 
 
Interest cost
$
403

 
$
439

 
$
1,209

 
$
1,315

Expected return on plan assets
(658
)
 
(614
)
 
(1,974
)
 
(1,842
)
Amortization of unrecognized net loss
107

 
115

 
321

 
345

Net periodic benefit income
$
(148
)
 
$
(60
)
 
$
(444
)
 
$
(182
)