Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 20,878	$ 7,082
Other comprehensive income:
Currency translation adjustment	353	585
Unrealized (loss) gain on derivative instruments	(613)	1,031
Net (loss) gain recognized in other comprehensive income	(260)	1,616
Tax benefit (expense) related to items of other comprehensive income	59	(365)
Other comprehensive (loss) income	(201)	1,251
Total comprehensive income	$ 20,677	$ 8,333

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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