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Earnings Per Share (Details Textual) (USD $)
In Millions, except Share data, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Earnings Per Share [Line Items]  
Stock Repurchased During Period, Shares 438,577
Treasury Stock Acquired, Average Cost Per Share $ 23.96
Stock Repurchase Program, Authorized Amount $ 25.0
Adjustments To Additional Paid In Capital Under Stock Repurchased Costs 10.5
Stock Repurchase Program, Remaining Authorized Repurchase Amount 14.5
Stock Repurchase Program Expiration Date Aug. 31, 2015
Adjustments To Additional Paid In Capital Under Stock Repurchased Costs Settled In Cash $ 9.8