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Subsequent Events (Details) (USD $)
In Millions, unless otherwise specified
Feb. 07, 2014
Mar. 08, 2013
Feb. 19, 2015
Subsequent Event [Line Items]      
Stock Repurchase Program, Authorized Amount $ 50.0us-gaap_StockRepurchaseProgramAuthorizedAmount1 $ 50.0us-gaap_StockRepurchaseProgramAuthorizedAmount1  
Subsequent Event [Member]      
Subsequent Event [Line Items]      
Stock Repurchase Program, Authorized Amount     $ 50.0us-gaap_StockRepurchaseProgramAuthorizedAmount1
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember