Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	76,844,899	73,373,744
Common stock, shares outstanding	76,780,402	73,342,777
Treasury stock, shares	64,497	30,967
Series A Preferred Stock
Preferred stock, par value	$ 0.01	$ 0
Preferred stock, shares authorized	2,000,000	0
Preferred stock, shares issued	150,000	0
Preferred stock, shares outstanding	0	0