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CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
CONSOLIDATED STATEMENTS OF INCOME      
Compensation and related costs, share-based compensation $ 53,179 $ 48,748 $ 45,384
Income (loss) from discontinued operations, tax expense $ 0 $ 1,058 $ 2,556