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Summary of Significant Accounting Policies (Narrative) (Details)
$ / shares in Units, $ in Millions
Apr. 09, 2015
USD ($)
$ / shares
Dec. 27, 2015
$ / shares
Sep. 27, 2015
$ / shares
Class of Stock [Line Items]      
Common stock, par value   $ 0.001 $ 0.001
Common Stock [Member]      
Class of Stock [Line Items]      
Stock split conversion ratio 2    
Common stock, par value $ 0.001    
Impact to shareholders' equity from stock split | $ $ 0