Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Consolidated Statements of Comprehensive Income (Parenthetical)

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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement of Comprehensive Income [Abstract]      
Net changes in fair value of cash flow hedges, tax $ 12,845 $ 2,080 $ (2,131)
Actuarial gain (loss) on pension obligations, tax $ 265 $ 215 $ (257)