Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ 158	$ 0	$ 0
State	2,076	819	485
Total current	2,234	819	485
Deferred
Federal	13,146	8,412	(23,308)
State	1	(60)	(2,030)
Total deferred	13,147	8,352	(25,338)
Total income tax provision (benefit)	$ 15,381	$ 9,171	$ (24,853)