CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Due from affiliate	$ 0	$ 7
Due to affiliate	$ 87	$ 99
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	165,128,053	162,529,811
Common stock, shares outstanding (in shares)	165,128,053	162,529,811
Preferred Shares
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	40,866,376	40,866,376
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Convertible Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	9,133,624	9,133,624
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0