XML 40 R30.htm IDEA: XBRL DOCUMENT v3.8.0.1
Benefit Plans (Tables)
 9 Months Ended
Mar. 31, 2018
Pension Plan [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Net periodic pension (income)
The table below summarizes the components of net periodic pension income:
 
Three Months Ended March 31,
 
Nine Months Ended March 31,
(in thousands)
2018
 
2017
 
2018
 
2017
Service cost
$
414

 
$
720

 
$
1,224

 
$
2,180

Interest cost
7,716

 
7,756

 
23,051

 
23,335

Expected return on plan assets
(14,188
)
 
(14,659
)
 
(42,410
)
 
(44,088
)
Amortization of transition obligation
24

 
22

 
70

 
67

Amortization of prior service (credit) cost
(42
)
 
(113
)
 
90

 
(339
)
Recognition of actuarial losses
1,746

 
2,066

 
5,174

 
6,266

Settlement gain
—

 
(320
)
 
—

 
(320
)
Net periodic pension income
$
(4,330
)
 
$
(4,528
)
 
$
(12,801
)
 
$
(12,899
)
Other Postretirement Benefits Plan [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Net periodic pension (income)
The table below summarizes the components of net periodic other postretirement benefit cost:
 
Three Months Ended March 31,
 
Nine Months Ended March 31,
(in thousands)
2018
 
2017
 
2018
 
2017
Interest cost
$
157

 
$
168

 
$
471

 
$
505

Amortization of prior service credit
(6
)
 
(6
)
 
(16
)
 
(16
)
Recognition of actuarial loss
70

 
89

 
210

 
266

Net periodic other postretirement benefit cost
$
221

 
$
251

 
$
665

 
$
755