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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Statement of Comprehensive Income [Abstract]    
Foreign currency translation adjustment, tax recovery $ (289) $ (4,532)
Change in fair value of cash flow hedge, tax recovery and (expense) 3,862 (952)
Change in unrealized pension and other post-employment expense, tax expense $ (2,735) $ 696