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Accumulated Other Comprehensive Loss
 3 Months Ended
Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
The changes in accumulated other comprehensive loss by component for the three months ended March 31, 2018 and 2017 were as follows:
(Dollars in tables and footnotes in thousands)
Foreign currency translation adjustments
 
Funded status of pension plans and other postretirement benefits (1)
 
Unrealized gain (loss) on derivative instruments (2)
 
Total
Beginning Balance December 31, 2017
$
(17,983
)
 
$
(47,198
)
 
$
26

 
$
(65,155
)
Other comprehensive income (loss) before reclassifications
7,000

 
—

 
778

 
7,778

Amounts reclassified from accumulated other comprehensive income
—

 
43

 
—

 
43

Net current-period other comprehensive income (loss)
7,000

 
43

 
778

 
7,821

Ending Balance March 31, 2018
$
(10,983
)
 
$
(47,155
)
 
$
804

 
$
(57,334
)
 
 
 
 
 
 
 
 
Beginning Balance December 31, 2016
$
(46,446
)
 
$
(45,816
)
 
$
—

 
$
(92,262
)
Other comprehensive income (loss) before reclassifications
4,138

 
—

 
(114
)
 
4,024

Amounts reclassified from accumulated other comprehensive income
—

 
30

 
—

 
30

Net current-period other comprehensive income (loss)
4,138

 
30

 
(114
)
 
4,054

Ending Balance March 31, 2017
$
(42,308
)
 
$
(45,786
)
 
$
(114
)
 
$
(88,208
)
(1) Net of taxes of $9,549 and $9,563 as of March 31, 2018 and December 31, 2017, respectively. Net of taxes of $9,144 and $9,160 as of March 31, 2017 and December 31, 2016, respectively.
(2) Net of taxes of $225 and $15 as of March 31, 2018 and December 31, 2017, respectively. Net of taxes of $65 and $0 as of March 31, 2017 and December 31, 2016, respectively.