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Noncontrolling Interests (Details of the income from NCI table) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Components on noncontrolling interests    
Net income attributable to nonredeemable noncontrolling interests $ (571) $ (620)
Net loss attributable to redeemable noncontrolling interests 2,040 39
Net loss (income) $ 1,469 $ (581)