Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 16,975	$ 8,359	$ 37,853	$ 15,443
Other comprehensive income:
Currency translation adjustment	(387)	(817)	(34)	(232)
Unrealized (loss) gain on derivative instruments	(1,071)	384	(1,684)	1,415
Net (loss) gain recognized in other comprehensive income	(1,458)	(433)	(1,718)	1,183
Tax benefit (expense) related to items of other comprehensive income	329	98	388	(267)
Other comprehensive (loss) income	(1,129)	(335)	(1,330)	916
Total comprehensive income	$ 15,846	$ 8,024	$ 36,523	$ 16,359

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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Amount before tax, after 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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