Income Taxes - Schedule of Reconciliation of Income Tax Expense (benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Federal
State		19	19
Total current income tax expense		19	19
Deferred Federal	(6,880)	(32,421)	(12,001)
Deferred State		3,008	(3,266)
Total deferred income tax benefit	(6,880)	(29,413)	(15,267)
Total income tax benefit	$ (6,880)	$ (29,394)	$ (15,248)