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Description of the Business (Details) (USD $)
Aug. 03, 2012
Apr. 27, 2012
Dec. 23, 2011
Jul. 29, 2011
Description of Business [Abstract]        
Effective date of merger   2011-12-23    
Common stock, par value (in dollars per share) $ 0.01   $ 0.01 $ 0.01