Income Taxes - Schedule of Current and Deferred Income Tax (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current:
U.S. federal tax (benefit)	$ 506	$ (15,433)	$ (5,751)
State and local tax	(1,326)	(4,631)	(74)
Non-U.S. operations	144	46	181
Total Current	(676)	(20,018)	(5,644)
Deferred:
U.S. federal tax (benefit)	(1,215)	5,856	4,198
State and local tax	1,725	617	1,632
Non-U.S. operations	(1,968)	1,283	220
Deferred income taxes	(1,458)	7,756	6,050
Current and Deferred Income Tax Expense (Benefit) from Continuing Operations	$ (2,134)	$ (12,262)	$ 406