Revenue Recognition Deferred Revenue, by Arrangement (Details) - USD ($) $ in Thousands	12 Months Ended
May 02, 2020	Apr. 27, 2019
Revenue from Contract with Customer [Abstract]
Balance at beginning of year	$ 24,939	$ 20,127
New contracts sold	41,169	41,907
Less: reductions for revenue recognized	(41,167)	(37,241)
Foreign currency translation and other	(451)	146
Balance at end of year	$ 24,490	$ 24,939

Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

No definition available.

Name:	us-gaap_DeferredRevenueAdditions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration