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Summary of Significant Accounting Policies - Stock Split (Details)	Feb. 09, 2016 $ / shares	Nov. 23, 2015	Oct. 28, 2018 $ / shares shares	Oct. 29, 2017 $ / shares shares	Jan. 27, 2016 $ / shares shares	Jan. 26, 2016 $ / shares shares
Common stock, par value (in dollars per share) | $ / shares	$ 0.01465				$ 0.01465	$ 0.0293
Common stock, number of shares authorized (in shares) | shares					1,600,000,000	800,000,000
Common Stock
Authorized stock split ratio	2	2
Common stock, par value (in dollars per share) | $ / shares			$ 0.01465	$ 0.01465
Common stock, number of shares authorized (in shares) | shares			1,600,000,000	1,600,000,000

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Face amount or stated value per share of common stock.

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