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v3.20.2

Significant Accounting Policies - Accounts Receivable (Details) $ in Millions | Sep. 01, 2019 USD ($)
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Accounting Policies [Abstract] |
Total reserve balance | $ 23.4

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- Definition Accounts Receivable, Sales Returns, Reserve for Sales Returns + References No definition available. + Details
Name: | ayi_AccountsReceivableSalesReturnsReserveforSalesReturns
Namespace Prefix: | ayi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration