Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
State tax expense	$ 1,053	$ 700	$ 2,882	$ 2,724
Current tax benefit	225	927	7,695	1,194
Deferred tax benefit (provision)	839	1,459	(2,911)	1,780
Income tax benefit	1,064	$ 2,386	4,784	$ 2,974
Net deferred tax asset	$ 9,954		$ 9,954		$ 5,841