Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
State and local	$ 0	$ 110	$ 11	$ 110
Current income tax expense (benefit)	0	$ 923	11	$ 923
U.S. Federal, State and Local tax authorities
Operating Loss Carryforwards [Line Items]
Operating loss carry-forward					$ 69,100
Operating loss carry-forward available	$ 6,000		$ 6,000		$ 14,800