Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible equity-based compensation costs.

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Amount of unrecognized tax benefits.

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2018
Subsequent Event [Line Items]
Tax benefit (expense)	$ 6,896	$ 9,458	$ 12,931	$ 30,247
Tax impact of share-based awards			1,200
Unrecognized tax benefits	$ 0		$ 0
Minimum \| Forecast
Subsequent Event [Line Items]
Effective tax rate					21.00%
Maximum \| Forecast
Subsequent Event [Line Items]
Effective tax rate					23.00%