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Accumulated Other Comprehensive Income (Tables)
 12 Months Ended
Dec. 31, 2017
Equity [Abstract]  
Summary of Additional Information on Accumulated Other Comprehensive (Loss) Income
The following additional information is provided with respect to the accumulated other comprehensive (loss) income as presented on the condensed consolidated balance sheets (in thousands):
 
 
Unrealized gain (loss) on derivative instruments
 
Other (2)
 
Total
Balance, net of tax, as of December 31, 2014
 
$
(1,088
)
 
$
(1,104
)
 
$
(2,192
)
Other comprehensive income before reclassifications
 
(2,140
)
 
(1,444
)
 
(3,584
)
Loss reclassified to earnings (1)
 
1,745

 
—

 
1,745

Total other comprehensive income (loss)
 
(395
)
 
(1,444
)
 
(1,839
)
Balance, net of tax, as of December 31, 2015
 
$
(1,483
)
 
$
(2,548
)
 
$
(4,031
)
Other comprehensive income before reclassifications
 
(2,712
)
 
(1,268
)
 
(3,980
)
Gain reclassified to earnings (1)
 
1,910

 
—

 
1,910

Total other comprehensive income (loss)
 
(802
)
 
(1,268
)
 
(2,070
)
Balance, net of tax, as of December 31, 2016
 
$
(2,285
)
 
$
(3,816
)
 
$
(6,101
)
Other comprehensive income before reclassifications, net of $1,269 tax during 2017
 
2,164

 
1,427

 
3,591

Gain/Loss reclassified to earnings (1)
 
(1,163
)
 
—

 
(1,163
)
Total other comprehensive income (loss)
 
1,001

 
1,427

 
2,428

Balance, net of tax, as of December 31, 2017
 
$
(1,284
)
 
$
(2,389
)
 
$
(3,673
)
(1) Reclassifications of gains (losses) on derivative instruments are included in cost of revenues on the consolidated statement of comprehensive loss. See Note 16, Derivative Instruments and Hedging for further information.
(2) Other includes cumulative translation adjustments and, to a lesser extent, pension benefits.