Interim Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interim Condensed Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 55,947	$ 16,217	$ 34,838	$ 28,081
Other comprehensive (loss) income, net of income tax:
Currency translation adjustment	(6,052)	3,647	(100,650)	3,353
Unrealized gains on hedging activities	997		4,978
Unrealized net gains (loss) on available for sale investments	(1,207)	492	1,061	2,504
Less: Reclassification adjustment for gains from accumulated other comprehensive (loss) income	2,375		4,079	2,729
Net change in accumulated other comprehensive (loss) income, net of income tax	(8,637)	4,139	(98,690)	3,128
Total Comprehensive (loss) income	$ 47,310	$ 20,356	$ (63,852)	$ 31,209

Other Comprehensive Income Loss Reclassification Adjustment From AOCI Net Of Tax

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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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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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