Additional period for extension of agreement termination date.

No definition available.

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Period Type:	duration

- Definition

This ratio is defined as the ratio of consolidated earnings before interest, taxes and rents to consolidated interest expense plus consolidated rents.

+ References

No definition available.

+ Details

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Namespace Prefix:	azo_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum consolidated interest coverage ratio for debt instruments.

+ References

No definition available.

+ Details

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Namespace Prefix:	azo_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of long-term debt instruments that have contractual principal amounts and for which the fair value option has been elected.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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-Section S99
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Period Type:	instant

- Details

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- Details

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- Details

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Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
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Financing - Additional Information (Detail) $ in Thousands					12 Months Ended
Financing - Additional Information (Detail) $ in Thousands	Jan. 18, 2022 USD ($)	Nov. 15, 2021 USD ($)	Mar. 15, 2021 USD ($)	Aug. 14, 2020 USD ($)	Aug. 27, 2022 USD ($)	Aug. 28, 2021 USD ($)	Aug. 29, 2020 USD ($)	Aug. 01, 2022 USD ($)	Nov. 14, 2021 USD ($)
Debt Instrument [Line Items]
Minimum debt covenant interest coverage ratio to be maintained quarterly					2.5
Debt covenant interest coverage ratio					7.4
Remaining borrowing capacity under revolving credit agreement					$ 2,200,000
Repayment of debt					500,000	$ 250,000	$ 500,000
Fair value of the Company's debt					5,900,000	5,700,000
Excess (shortfall) of fair value of debt over (from) carrying value					(182,800)	413,100
Revolving Credit Agreement
Debt Instrument [Line Items]
Amount available under credit facility		$ 2,250,000							$ 2,000,000
Maximum amount available under credit facility		$ 3,250,000							$ 2,250,000
Additional amount of year(s) to extend termination date of agreement		1 year
Swingline Loans
Debt Instrument [Line Items]
Maximum amount available under credit facility		$ 75,000
Individual Issuer, Letter of Credit
Debt Instrument [Line Items]
Maximum amount available under credit facility		50,000
Letter of Credit
Debt Instrument [Line Items]
Maximum amount available under credit facility		$ 250,000			25,000
Borrowings, outstanding					105,100
Letters of credit, outstanding					23,600
Master Extension Agreement
Debt Instrument [Line Items]
Credit facility expiration date		Nov. 15, 2026
Letters of credit, outstanding					1,800
Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings, outstanding					$ 0
3.700% Senior Notes due April 2022, effective interest rate of 3.85%
Debt Instrument [Line Items]
Senior notes						$ 500,000
Stated interest rate percentage	3.70%				3.70%	3.70%
Repayment of debt	$ 500,000
2.875% Senior Notes due January 2023, effective interest rate of 3.21%
Debt Instrument [Line Items]
Senior notes					$ 300,000	$ 300,000
Stated interest rate percentage					2.875%	2.875%
4.750% Senior Notes due August 2032, effective interest rate of 4.76%
Debt Instrument [Line Items]
Senior notes					$ 750,000			$ 750,000
Stated interest rate percentage					4.75%	4.75%		4.75%
1.650% Senior Notes due January 2031, effective interest rate of 2.19%
Debt Instrument [Line Items]
Senior notes				$ 600,000	$ 600,000	$ 600,000
Stated interest rate percentage				1.65%	1.65%	1.65%
4.000% Senior Notes due November 2020, effective interest rate of 4.43%
Debt Instrument [Line Items]
Stated interest rate percentage				4.00%
Repayment of debt				$ 500,000
3.125% Senior Notes due July 2023, effective interest rate of 3.26%
Debt Instrument [Line Items]
Senior notes					$ 500,000	$ 500,000
Stated interest rate percentage					3.125%	3.125%
2.500% Senior Notes due April 2021
Debt Instrument [Line Items]
Stated interest rate percentage			2.50%
Repayment of debt			$ 250,000