Equity and Earnings (Loss) Per Share (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Class of Stock [Line Items]
Repurchase of preferred stock			$ 5,328,000
Preferred stock inducement and repurchase premiums	675,000	0	19,108,000	0
Equity and earnings (loss) per share (Textuals) [Abstract]
Warrants exercised			1,229,100
Common stock shares issued upon exercise of warrants			20,485,036
Exercise price of warrants	6.00		6.00
Cash tendered as settlement of the warrant exercise price			6,760,000
Preferred stock shares tendered as settlement of the warrant exercise price			1,161,500
Loss on disposition of majority owned subsidiary		3,700,000
Distribution to noncontrolling interests			5,863,000
Inducement Premium to Exercise Warrants [Member]
Class of Stock [Line Items]
Preferred stock inducement and repurchase premiums			16,500,000
Repurchase Premium on Preferred Stock [Member]
Class of Stock [Line Items]
Repurchase of preferred stock			5,300,000
Preferred stock inducement and repurchase premiums			$ 2,600,000
Repurchase of preferred stock, shares			47,300