Revenue Deferred Revenue (Tables)

3 Months Ended

Jul. 27, 2019

Revenue Recognition and Deferred Revenue [Abstract]

Contract with Customer, Asset and Liability [Table Text Block]

The following table presents changes in contract liabilities during the 13 weeks ended July 27, 2019:

	13 weeks ended
	July 27, 2019			July 28, 2018
Deferred revenue at the beginning of period	$	20,418		$	20,144
Additions to deferred revenue during the period	18,083			25,100
Reductions to deferred revenue for revenue recognized during the period	(24,313		)	(29,393		)
Deferred revenue balance at the end of period	$	14,188		$	15,851