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Accumulated Other Comprehensive Income
 12 Months Ended
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income

 
Year ended
 
December 31, 2018

December 31, 2017

 
(in thousands)
Currency translation adjustments
$
(62,710
)
$
(36,188
)
Currency impact on long term funding
(5,016
)
(182
)
Actuarial loss on defined benefit pension plan (note 9)
(3,000
)
(5,855
)
Unrealized capital loss – investments (note 3)
(450
)
(295
)
Realized gain on interest rate hedge
4,658

4,658

Amortization of interest rate hedge
(2,810
)
(1,887
)
Fair value of cash flow hedge
—

1,036

 
Total
$
(69,328
)
$
(38,713
)