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Employee Benefit Plans (Tables)
 9 Months Ended
Mar. 31, 2015
Pension Plan [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Schedule of Net Periodic Benefit Costs
The net periodic benefit cost for the defined benefit pension plans is as follows:
 
Three Months Ended
March 31,
 
Nine Months Ended
March 31,
 
2015
 
2014
 
2015
 
2014
(In thousands)
 
 
 
 
 
Service cost
$
97

 
$
100

 
$
291

 
$
300

Interest cost
1,415

 
1,452

 
4,245

 
4,356

Expected return on plan assets
(1,823
)
 
(1,705
)
 
(5,469
)
 
(5,115
)
Amortization of net loss(1)
303

 
336

 
909

 
1,008

Net periodic benefit (credit) cost
$
(8
)
 
$
183

 
$
(24
)
 
$
549


_____________
(1) These amounts represent the estimated portion of the net loss remaining in AOCI that is expected to be recognized as a component of net periodic benefit cost over the current fiscal year.
Schedule of Weighted Average Assumptions Used
Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost
 
Fiscal
 
2015
 
2014
Discount rate
4.15%
 
4.50%
Expected long-term rate of return on plan assets
7.50%
 
8.00%
Other Postretirement Benefit Plan, Defined Benefit [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Schedule of Net Periodic Benefit Costs
The following table shows the components of net periodic postretirement benefit cost (credit) for the Retiree Medical Plan and Death Benefit for the three and nine months ended March 31, 2015 and 2014. Net periodic postretirement benefit credit for the three and nine months ended March 31, 2015 is based on employee census information as of July 1, 2014 and asset information as of June 30, 2014. 
 
 
Three Months Ended March 31,
 
Nine Months Ended March 31,
 
 
2015
 
2014
 
2015
 
2014
(In thousands)
 
 
 
 
 
 
Components of Net Periodic Postretirement Benefit Credit:
 
 
 
 
 
 
Service cost
 
$
299

 
$
234

 
897

 
184

Interest cost
 
235

 
202

 
705

 
607

Expected return on plan assets
 
—

 
—

 
—

 
—

Amortization of net gain
 
(125
)
 
(220
)
 
(375
)
 
(661
)
Amortization of unrecognized transition (asset) obligation
 
—

 
—

 
—

 
—

Amortization of net prior service credit
 
(439
)
 
(440
)
 
(1,317
)
 
(1,319
)
Net periodic postretirement benefit credit
 
$
(30
)
 
$
(224
)
 
$
(90
)
 
$
(1,189
)
Schedule of Weighted Average Assumptions Used
Weighted-Average Assumptions Used to Determine Net Periodic Postretirement Benefit Cost 
 
Fiscal
 
2015
 
2014
Retiree Medical Plan discount rate
4.29%
 
4.80%
Death Benefit discount rate
4.48%
 
4.53%