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Accumulated Other Comprehensive Loss
 12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss)
ACCUMULATED OTHER COMPREHENSIVE LOSS
Accumulated other comprehensive loss is reported in our Consolidated Statements of Stockholders’ Equity. Amounts included in accumulated other comprehensive loss, net of tax, were as follows:
 
 
Unrecognized Net
Defined Benefit
Plan Costs
 
Change in Fair
Value of
Derivatives
 
Foreign
Currency
Translation
 
Total
 
(Dollars in thousands)
Balance at January 1, 2014
$
(38,921
)
 
$
(3,790
)
 
$
4,592

 
$
(38,119
)
Other comprehensive loss before
    reclassifications
(49,602
)
 
(923
)
 
(79,766
)
 
(130,291
)
Amounts reclassified from accumulated
    other comprehensive loss
(729
)
 
3,515

 
—

 
2,786

 Other comprehensive loss
(50,331
)
 
2,592

 
(79,766
)
 
(127,505
)
Balance at December 31, 2014
(89,252
)
 
(1,198
)
 
(75,174
)
 
(165,624
)
Other comprehensive loss before
    reclassifications
2,851

 
(1,410
)
 
(48,364
)
 
(46,923
)
Amounts reclassified from accumulated
    other comprehensive loss
2,121

 
1,620

 
—

 
3,741

 Other comprehensive loss
4,972

 
210

 
(48,364
)
 
(43,182
)
Balance at December 31, 2015
(84,280
)
 
(988
)
 
(123,538
)
 
(208,806
)
Other comprehensive loss before
    reclassifications
(1,991
)
 
441

 
(17,753
)
 
(19,303
)
Amounts reclassified from accumulated
    other comprehensive loss
3,166

 
1,087

 
—

 
4,253

 Other comprehensive loss
1,175

 
1,528

 
(17,753
)
 
(15,050
)
Balance at December 31, 2016
$
(83,105
)
 
$
540

 
$
(141,291
)
 
$
(223,856
)

The amounts reclassified to earnings from the unrecognized net defined benefit plan costs component of accumulated other comprehensive loss for the years ended December 31, 2016, 2015 and 2014 were net (losses) gains of $(5.0) million, $(3.2) million and $1.2 million, respectively, excluding an income tax benefit (provision) of $1.8 million, $1.1 million and $(0.5) million, respectively. These net (losses) gains included amortization of net actuarial losses of $8.0 million, $5.2 million and $0.5 million for the years ended December 31, 2016, 2015 and 2014, respectively, and amortization of net prior service credit of $3.0 million, $2.0 million and $1.7 million for the years ended December 31, 2016, 2015 and 2014, respectively. Amortization of net actuarial losses and net prior service credit is a component of net periodic benefit cost. Amounts expected to be recognized as components of net periodic benefit costs in our Consolidated Statement of Income for the year ended December 31, 2017 are $4.2 million and $1.9 million, net of income taxes, for the net actuarial loss and net prior service credit, respectively, related to our pension and other postretirement benefit plans. See Note 11 for further discussion.
The amounts reclassified to earnings from the change in fair value of derivatives component of accumulated other comprehensive loss for the years ended December 31, 2016, 2015 and 2014 were net (losses) of $(1.7) million, $(2.6) million and $(6.1) million, respectively, excluding an income tax benefit of $0.6 million, $1.0 million and $2.6 million, respectively. These net (losses) included $(0.8) million, $(1.4) million and $(6.2) million of losses related to our interest rate swap agreements which were recorded in interest and other debt expense for the years ended December 31, 2016, 2015 and 2014, respectively, and (losses) gains of $(0.9) million, $(1.2) million and $0.1 million related to our natural gas swap agreements which were recorded in cost of goods sold for the years ended December 31, 2016, 2015 and 2014, respectively, in our Consolidated Statements of Income for such years. We estimate that we will reclassify $0.5 million of gains, net of income taxes, of the change in fair value of derivatives component of accumulated other comprehensive loss to earnings during the next twelve months. The actual amount that will be reclassified to earnings will vary from this amount as a result of changes in market conditions. See Note 9 which includes a discussion of derivative instruments and hedging activities.
The foreign currency translation component of accumulated other comprehensive loss includes: (i) foreign currency (losses) related to translation of year-end financial statements of foreign subsidiaries utilizing a functional currency other than the U.S. Dollar; (ii) foreign currency (losses) related to intra-entity foreign currency transactions that are of a long-term investment nature; and (iii) foreign currency gains related to our net investment hedges, net of tax. Foreign currency (losses) related to translation of year-end financial statements of foreign subsidiaries utilizing a functional currency other than the U.S. Dollar for the years ended December 31, 2016, 2015 and 2014 were $(20.6) million, $(55.5) million and $(83.5) million, respectively. Foreign currency (losses) related to intra-entity foreign currency transactions that are of a long-term investment nature for the years ended December 31, 2016, 2015 and 2014 were $(2.0) million, $(9.6) million and $(19.7) million, respectively. Foreign currency gains related to our net investment hedges for the years ended December 31, 2016, 2015 and 2014 were $7.6 million, $26.6 million and $37.4 million, respectively, excluding an income tax (provision) of $(2.8) million, $(9.9) million and $(14.0) million, respectively. See Note 9 for further discussion.