Income Taxes Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule of Components of Income Tax Expense (Benefit) [Line Items]
Current Income Tax Expense (Benefit)	$ 5,667	$ 1,168	$ (153)
Deferred Income Tax Expense (Benefit)	(5,145)	(10,815)	0
Federal Income Tax Expense (Benefit), Continuing Operations	$ 522	$ (9,647)	$ (153)