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Preferred Stock (Details) (USD $)
Dec. 31, 2014
Equity [Abstract]  
Preferred stock, shares authorized (in shares) 10,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, par value (in dollars per share) $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares outstanding (in shares) 0us-gaap_PreferredStockSharesOutstanding