Interim Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 15,528	$ 15,253
Other comprehensive (loss) income:
Foreign currency translation adjustment	(20,454)	720
Net gain on pension and other post-retirement benefits	246	215
Unrealized losses on derivative instruments	(4,390)	0
Other comprehensive (loss) income before income tax expense	(24,598)	935
Income tax expense related to items of other comprehensive income	(52)	(45)
Other comprehensive (loss) income	(24,650)	890
Comprehensive (loss) income	$ (9,122)	$ 16,143

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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