CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 100	$ 100
Preferred stock, shares authorized	100,000	100,000
Preferred stock, issued		11,500
Preferred stock, redemption value per share (in dollars per share)	$ 10,000	$ 10,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	128,000,000	128,000,000
Common stock, shares issued	69,922,551	65,306,748
Treasury stock, shares	245,256	233,063
Series A Preferred Stock [Member]
Statement of Financial Position [Abstract]
Preferred stock, issued	8,880
Series B Preferred Stock [Member]
Statement of Financial Position [Abstract]
Preferred stock, issued	32,500