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Stock Compensation Summary of restricted stock activity (Details) (Restricted Stock [Member], USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Mar. 31, 2012
Sep. 30, 2011
Mar. 31, 2011
Sep. 30, 2012
Restricted Stock [Member]
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unvested shares at January 1, 2012 (in shares)   288,500     288,500
Granted (in shares) 75,000,000     90,495,000 165,495
Granted, Average Grant Date Fair Value (in dollars per share)   $ 12.96 $ 14.80   $ 13.79
Vested (in shares)         (40,500)
Vested, Average Grant Date Fair Value (in dollars per share)         $ 0
Forfeited (in shares)         (32,275)
Forfeited, Average Grant Date Fair Value (in dollars per share)         $ 10.03
Unvested shares at June 30, 2012 (in shares) 381,220       381,220
Unvested shares at June 30, 2012, Average Grant Date Fair Value (in dollars per share) $ 11.01       $ 11.01