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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Schedule of Comprehensive Loss
The following table shows the components of accumulated other comprehensive loss, net of taxes as of December 31, 2015 and 2014:

 
2015
 
2014
Cumulative foreign currency translation
$
(114,427
)
 
$
(77,460
)
Cumulative supplemental benefit plans
(3,540
)
 
(4,266
)
Net unrecognized losses on interest rate swap
(2,699
)
 
(2,335
)
Net unrealized gains on marketable securities
550

 
275

Accumulative other comprehensive loss
$
(120,116
)
 
$
(83,786
)