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Condensed Consolidated Statements of Operations (Unaudited) (Parenthetical) (USD $)
In Thousands
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Condensed Consolidated Statements of Operations [Abstract]    
Accretion of issuance cost of preferred dividends$ 425$ 118$ 661$ 4,371