XML 65 R51.htm IDEA: XBRL DOCUMENT
v3.19.1

Revenue Recognition - Additional Information (Detail) - USD ($) $ in Thousands | Aug. 26, 2018 | Aug. 25, 2018
--- | --- | ---
Revenue From Contract With Customer [Line Items] |  |
An increase of retained deficit |  | $ (6,773)
Accounting Standards Update 2014-09 [Member] |  |
Revenue From Contract With Customer [Line Items] |  |
An increase of retained deficit | $ (6,800) |
Accounting Standards Update 2014-09 [Member] | Other Current Liabilities [Member] |  |
Revenue From Contract With Customer [Line Items] |  |
An increase of retained deficit | $ (6,800) |

X
- Definition Revenue From Contract With Customer [Line Items] + References No definition available. + Details
Name: | azo_RevenueFromContractWithCustomerLineItems
Namespace Prefix: | azo_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. + References No definition available. + Details
Name: | us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201409Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |