Loss per Common Share - Textual (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income (Loss) from Continuing Operations, Per Basic Share	$ 3.33	$ 0.25	$ 0.14	$ (0.21)	$ 0.17	$ (0.62)	$ 0.02	$ (0.47)	$ 3.72	$ (0.89)	$ (0.58)
Net Income Allocated to Convertible Shares									$ (29,902)	$ 0	$ 0
Antidilutive securities excluded from computation of earnings per share, amount									886,596	1,391,456	947,465
Contingent Restricted Stock Units (RSUs) [Member]
Antidilutive securities excluded from computation of earnings per share, amount									1,433,921
Preferred Stock [Member] | Series 4 Convertible Preferred Stock [Domain]
Shares, Outstanding	95,000,000				0				95,000,000	0
Convertible Preferred Stock, Shares Issued upon Conversion	10,135,244								10,135,244