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Subsequent Event	9 Months Ended
Subsequent Event	Sep. 30, 2012
Subsequent Events [Abstract]
Subsequent Event [Text Block]	Subsequent Events Stock Repurchases Subsequent to September 30, 2012, we repurchased 157,772 shares of our common stock, including 23,671 shares executed during September 2012 but settled in October 2012, under the stock repurchase program authorized by the Board of Directors on October 24, 2011. The average price paid per share was $42.73.