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Subsequent Event	6 Months Ended
Subsequent Event	Jun. 30, 2015
Subsequent Event [Line Items]
Subsequent Event [Text Block]	Subsequent Event Stock Repurchases Subsequent to June 30, 2015, we repurchased 230,000 shares of our common stock under the stock repurchase program authorized by the Board of Directors on February 19, 2015. The average price paid per share was $32.00.