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Supplemental Accumulated Other Comprehensive Loss Information
 3 Months Ended
Mar. 31, 2016
Statement of Comprehensive Income [Abstract]  
Supplemental Accumulated Other Comprehensive Loss Information
14. Supplemental Accumulated Other Comprehensive Loss Information
Changes in accumulated other comprehensive loss, by component, are presented below:
 
Defined and Postretirement Benefit Plans
 
Currency Translation Adjustments
 
Total
 
 
 
 
 
 
 
(Dollars in millions)
At December 31, 2015
$
(4.6
)
 
$
(15.2
)
 
$
(19.8
)
Other comprehensive income before reclassifications
—

 
0.4

 
0.4

Net current period other comprehensive income
—

 
0.4

 
0.4

At March 31, 2016
$
(4.6
)
 
$
(14.8
)
 
$
(19.4
)

    
    
Reclassifications out of the accumulated other comprehensive loss were as follows:(1) 
 
Three Months Ended March 31,
 
2016
 
2015
 
 
 
 
 
(Dollars in millions)
Amortization of postretirement and defined benefit plan items to net income:
 
 
 
Actuarial loss(2) (3)
$
0.2

 
$
0.4

Prior service benefit(2)
(0.2
)
 
(0.4
)
Curtailment gain(2)
—

 
(4.0
)
Total income before taxes
—

 
(4.0
)
Less income tax expense
—

 
1.6

Total income, net of tax
$
—

 
$
(2.4
)

(1)
Amounts in parentheses indicate credits to net income.
(2)
These accumulated other comprehensive (income) loss components are included in the computation of postretirement benefit plan expense (benefit) and defined benefit plan expense. See Note 9.
(3)
The Three months ended March 31, 2015 includes $0.2 million of amortization of actuarial losses related to the Company's defined benefit plan, which was terminated in the second quarter of 2015.