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Share Repurchase Program Share Repurchse Program (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
0 Months Ended 3 Months Ended 6 Months Ended 114 Months Ended
Apr. 29, 2014
Jun. 30, 2014
Jun. 30, 2014
Jun. 17, 2013
Equity [Abstract]        
Stock Repurchase Program, Authorized Amount $ 150,000     $ 20,000
Stock Repurchased During Period, Shares     1,926,913  
Stock Repurchased During Period, Value     65,609  
Stock Repurchase Program, Remaining Authorized Repurchase Amount   $ 126,382    
Treasury Stock Acquired, Average Cost Per Share     $ 34.05