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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $)
In Thousands
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
CONDENSED CONSOLIDATED STATEMENTS OF INCOME    
Income tax expense on discontinued operations$ 6,216$ 5,859$ 7,121$ 14,873