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Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
The components of accumulated other comprehensive loss consist of the following:
 
 
 
Year ended December 31,
 
 
 
2016
 
2015
 
2014
 
 
 
 
 
 
 
 
 
Net derivative instruments, beginning of year
 
$
—
 
$
—
 
$
—
 
Net derivative instrument loss, net of tax
 
 
(17)
 
 
—
 
 
—
 
Net derivative instruments, end of year
 
 
(17)
 
 
—
 
 
—
 
 
 
 
 
 
 
 
 
 
 
 
Cumulative translation adjustments, beginning of year
 
 
(48,091)
 
 
(15,823)
 
 
25,860
 
Translation adjustments
 
 
(9,874)
 
 
(32,268)
 
 
(41,683)
 
Cumulative translation adjustments, end of year
 
 
(57,965)
 
 
(48,091)
 
 
(15,823)
 
 
 
 
 
 
 
 
 
 
 
 
Accumulated other comprehensive loss
 
$
(57,982)
 
$
(48,091)
 
$
(15,823)