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Accumulated Other Comprehensive Loss
 12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss
The components of accumulated other comprehensive loss, net of tax were as follows: 
 
Foreign
Currency
Translation
Adjustments
 
Unrealized 
Losses on
Cash Flow
Hedges
 
Total
 
(in thousands)
Balance at December 31, 2017
$
696

 
$
(1,237
)
 
$
(541
)
Other comprehensive loss
(2,233
)
 
(437
)
 
(2,670
)
Balance at December 31, 2018
(1,537
)
 
(1,674
)
 
(3,211
)
Other comprehensive loss
(598
)
 
(279
)
 
(877
)
Balance at December 31, 2019
$
(2,135
)
 
$
(1,953
)
 
$
(4,088
)