Supplementary Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 29, 2017	Oct. 28, 2017
Deferred Compensation Arrangement with Individual, Compensation Expense		$ 5,361
Max Roberts [Member]
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 4,424
Michael Huseby [Member]
Deferred Compensation Arrangement with Individual, Compensation Expense	250
Max Roberts [Member]
Deferred Compensation Arrangement with Individual, Compensation Expense	$ 562