Stockholders' (Deficit) Equity - Common Stock Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands					12 Months Ended
	Apr. 15, 2014	Feb. 12, 2014	Nov. 15, 2013	Nov. 16, 2012	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Common stock dividends (in dollars per share)	$ 0.16	$ 0.16	$ 0.16	$ 3.00	$ 0	$ 0	$ 0.32
Dividends payable, current and noncurrent					$ 14	$ 118
Dividends payable, current					9
Dividends payable noncurrent					$ 5