Loss per Share Schedule of Earnings per Share (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Net Income (Loss) Attributable to Parent $ 32,329,000 $ (101,240,000) $ 27,856,000 $ (203,908,000)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders   (6,166,000)   (15,651,000)
Less: Net loss (income) attributable to noncontrolling interests 1,220,000 (8,536,000) 2,100,000 (19,759,000)
Net (loss) income attributable to common stockholders 28,386,000 (107,406,000) 16,691,000 (253,886,000)
Weighted Average Number of Shares Outstanding, Basic 647,149,537 303,414,676 645,073,582 305,626,028
Basic $ 0.04 $ (0.35) $ 0.03 $ (0.83)
Diluted 663,122,709 303,414,676 663,230,558 305,626,028
Diluted $ 0.04 $ (0.35) $ 0.03 $ (0.83)
Net (loss) income 33,549,000 (109,776,000) 29,956,000 (223,667,000)
Redemption of preferred stock in excess of carrying value 0 0 0 (34,327,000)
Shares, Outstanding 305,626,028 303,414,676 305,626,028 303,414,676
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 7,909,872 328,524,836 2,499,946 328,524,836
Earnings Per Share, Basic and Diluted   $ (0.35)   $ (0.83)
Common Class A [Member]
       
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Net Income (Loss) Attributable to Parent 33,425,000   29,845,000  
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders (3,928,000)   (11,123,000)  
Less: Net loss (income) attributable to noncontrolling interests 1,215,000   2,092,000  
Net (loss) income attributable to common stockholders 28,282,000   16,630,000  
Weighted Average Number of Shares Outstanding, Basic 644,749,561   642,673,606  
Basic $ 0.04   $ 0.03  
Undistributed Earnings, Basic 28,282,000   16,630,000  
Conversion of Stock, Shares Issued 2,399,976   2,399,976  
Undistributed Earnings, Diluted 28,386,000   16,691,000  
Weighted Average Number Diluted Shares Outstanding Adjustment 11,794,679   12,971,501  
Conversion of Stock, Shares Converted 104,000   61,000  
Diluted Restricted Stock Adjustment 4,178,493   5,185,475  
Diluted 663,122,709   663,230,558  
Diluted $ 0.04   $ 0.03  
Common Class B [Member]
       
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Net Income (Loss) Attributable to Parent 124,000   111,000  
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders (15,000)   (42,000)  
Less: Net loss (income) attributable to noncontrolling interests 5,000   8,000  
Net (loss) income attributable to common stockholders 104,000   61,000  
Weighted Average Number of Shares Outstanding, Basic 2,399,976   2,399,976  
Basic $ 0.04   $ 0.03  
Undistributed Earnings, Basic 104,000   61,000  
Conversion of Stock, Shares Issued 0   0  
Undistributed Earnings, Diluted $ 104,000   $ 61,000  
Weighted Average Number Diluted Shares Outstanding Adjustment 0   0  
Conversion of Stock, Shares Converted 0   0  
Diluted Restricted Stock Adjustment 0   0  
Diluted 2,399,976   2,399,976  
Diluted $ 0.04   $ 0.03