Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income before provision for income taxes	$ 21,782	$ 5,612
Income tax expense using estimated annual effective income tax rate	6,863	2,056
Impact of discrete items, net	(114)	(108)
Income tax expense	$ 6,749	$ 1,948

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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