Quarterly report pursuant to sections 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Commitments and Contingencies (Textual) [Abstract]        
Costs paid related to legal, accounting and other professional fees     $ 3,800,000  
Costs are inclusive of professional fees 500,000   500,000  
General and administrative 5,278,000 4,460,000 17,688,000 13,227,000
Consultants, legal counsel, other professional fees     $ 500,000