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Supplementary Information Other Long-Term Liability (Details) - USD ($)
$ in Thousands
Jul. 30, 2016
Apr. 30, 2016
Aug. 01, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]      
Liability for Uncertain Tax Positions, Noncurrent $ 69,345 $ 69,345 $ 63,699
Deferred Rent Credit, Noncurrent 4,166 4,164 4,052
Other Sundry Liabilities, Noncurrent 1,465 1,871 1,804
Other Liabilities, Noncurrent $ 74,976 $ 75,380 $ 69,555