Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 344,052	$ 290,124
Other comprehensive income (loss):
Foreign currency translation adjustments	(6,018)	24,821
Comprehensive income	$ 338,034	$ 314,945

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

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