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Summary of Significant Accounting Policies - Schedule of Dividends Declared (Details) - USD ($)
$ in Thousands
6 Months Ended
Oct. 27, 2017
Oct. 28, 2016
Accounting Policies [Abstract]    
Cash dividends paid to common stockholders $ 163,013 $ 13,452
Dividend equivalent rights 2,021 253
Total dividends $ 165,034 $ 13,705