Income Taxes - Components of Income Tax Provision (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 19, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Current				$ 15,450
Deferred				12,838
Total Income Tax Provision		$ 221	$ 20	$ 28,288
Effective Tax Rate	38.10%			24.90%