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Employee Benefit Plans (Tables)
 6 Months Ended
Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]  
Schedule of Net Periodic Benefit Costs
The net periodic benefit cost for the defined benefit pension plans is as follows:
 
Three Months Ended
December 31,
 
Six Months Ended
December 31,
 
2013
 
2012
 
2013
 
2012
(In thousands)
 
 
 
Service cost
$
100

 
$
119

 
$
200

 
$
238

Interest cost
1,452

 
1,449

 
2,904

 
2,898

Expected return on plan assets
(1,705
)
 
(1,660
)
 
(3,410
)
 
(3,320
)
Amortization of net (gain) loss*
336

 
387

 
672

 
774

Amortization of prior service cost (credit)*
—

 
5

 
—

 
10

Net periodic benefit cost
$
183

 
$
300

 
$
366

 
$
600

The following table shows the components of net periodic postretirement benefit cost for the three and six months ended December 31, 2013 and 2012 for the postretirement medical and death benefits. Net periodic postretirement benefit cost for the three and six months ended December 31, 2013 was based on employee census information as of July 1, 2013 and asset information as of June 30, 2013.
 
 
 
Three Months Ended December 31,
 
Six Months Ended December 31,
 
 
2013
 
2012
 
2013
 
2012
(In thousands)
 
 
 
 
Components of Net Periodic Postretirement Benefit Cost:
 
 
 
 
 
 
 
 
Service cost
 
$
(25
)
 
$
493

 
$
468

 
$
986

Interest cost
 
163

 
242

 
405

 
484

Expected return on plan assets
 
—

 
—

 
—

 
—

Amortization of net gain
 
(445
)
 
4

 
(441
)
 
8

Amortization of unrecognized transition (asset) obligation
 
—

 
—

 
—

 
—

Amortization of prior service cost (credit)
 
(440
)
 
(439
)
 
(879
)
 
(878
)
Net periodic postretirement benefit (credit) cost
 
$
(747
)
 
$
300

 
$
(447
)
 
$
600
Schedule of Weighted Average Assumptions Used
Weighted-average assumptions used to determine net periodic postretirement benefit cost 
 
Fiscal
 
2014
 
2013
Postretirement medical benefit discount rate
4.80%
 
4.20%
Postretirement death benefit discount rate
4.53%
 
4.39%


Weighted-average assumptions used to determine net periodic benefit cost
 
Fiscal
 
2014
 
2013
Discount rate
4.50%
 
4.55%
Expected long-term rate of return on plan assets
8.00%
 
8.00%