Income Taxes - Schedule of Effective Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Taxes [Abstract]
Income before income taxes	$ 8,368	$ 25,663	$ 43,332	$ 48,022
Provision for income taxes	$ 1,181	$ 8,294	$ 6,318	$ 14,309
Effective tax rate	14.10%	32.30%	14.60%	29.80%

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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