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Condensed Statement of Shareholders' Equity (Parenthetical) (USD $)
In Thousands, except Per Share data
6 Months Ended
Jun. 30, 2011
Condensed Statement of Shareholders' Equity  
Dividends per share (in dollars per share) $ 0.15
Amortization of Accumulated other comprehensive loss related to de-designated hedges, income tax benefit $ 11,673