Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 45,437	$ 5,104
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment during the period		437
Other comprehensive income (loss)		437
Comprehensive income	$ 45,437	$ 5,541

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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