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Consolidated Statements Of Operations (Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Consolidated Statements Of Operations [Abstract]      
Income tax provision (benefit) related to associated companies $ (218,321) $ (5,745) $ 25,567
Income tax (benefit) related to discontinued operations (1,072) (2,350) (57)
Income tax provision related to gain on disposal of discontinued operations $ 3,384 $ 0 $ 0