Equity - Class of Stock Disclosures - Preferred Stock (Details) - Series C Preferred Stock - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2014
Equity
Preferred shares outstanding		0	2,000,000
Dividend Rate (as a percent)	8.50%
Number of shares of common stock to be issued upon conversion	2,000,000
Conversion price per share	$ 19.25
Shares converted	2,000,000