Basis Of Presentation (Policy)	6 Months Ended
Feb. 26, 2022
Basis Of Presentation [Abstract]
Fiscal Year	Fiscal Year The Company operates on a 52/53-week fiscal year ending on the Saturday closest to August 31st of each year. References to “fiscal year 2022” refer to the period from August 29, 2021 to September 3, 2022, which is a 53-week fiscal year. References to “fiscal year 2021” refer to the period from August 30, 2020 to August 28, 2021, which is a 52-week fiscal year. The fiscal quarters ended February 26, 2022 and February 27, 2021 refer to the thirteen weeks ended as of those dates.
Principles Of Consolidation	Principles of Consolidation The unaudited Condensed Consolidated Financial Statements include the accounts of MSC Industrial Direct Co., Inc., its wholly owned subsidiaries and entities in which it maintains a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation.
Impact Of COVID-19	Impact of COVID-19 The COVID-19 pandemic has impacted and may further impact the Company’s operations and the operations of the Company’s suppliers, vendors and freight carriers. However, demand from our traditional manufacturing end markets has recovered as certain restrictions implemented earlier in the pandemic have been lifted and economic and operating conditions have improved. In conjunction with the lifting of pandemic restrictions, the United States has experienced disruptions in the supply of certain products and services and constrained labor availability. These disruptions have affected the price and, at times, the availability of certain products and services necessary for the Company’s operations, including fuel, labor and certain products the Company sells or the inputs for such products. These disruptions are also impacting our customers and their ability to conduct their business or purchase our products and services. Such disruptions have impacted, and may continue to impact in the future, the Company’s business, financial condition and results of operations. The extent to which the COVID-19 pandemic, including new variants of COVID-19, will continue to impact the Company’s business, financial condition and results of operations is highly uncertain. Therefore, the Company cannot reasonably estimate future impacts of the COVID-19 pandemic at this time. The Company will continue to actively monitor the situation and may take further actions that alter our business operations as may be required by federal, state and local, and foreign authorities.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In March 2020, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides temporary optional expedients and exceptions to accounting guidance on contract modifications and hedge accounting to ease entities financial reporting burdens as the market transitions from LIBOR and other interbank offered rates to alternative reference rates. The guidance was effective upon issuance and will be applied prospectively to contract modifications made on or before December 31, 2022. The adoption of this guidance did not have a material impact on the Company’s unaudited Condensed Consolidated Financial Statements for the thirteen- and twenty-six-week periods ended February 26, 2022. Other pronouncements issued by the FASB or other authoritative accounting standards groups with future effective dates are either not applicable or are not expected to have a material impact on the Company’s unaudited Condensed Consolidated Financial Statements.

Basis Of Presentation (Policy)

6 Months Ended

Feb. 26, 2022

Fiscal Year The Company operates on a 52/53-week fiscal year ending on the Saturday closest to August 31st of each year. References to “fiscal year 2022” refer to the period from August 29, 2021 to September 3, 2022, which is a 53-week fiscal year. References to “fiscal year 2021” refer to the period from August 30, 2020 to August 28, 2021, which is a 52-week fiscal year. The fiscal quarters ended February 26, 2022 and February 27, 2021 refer to the thirteen weeks ended as of those dates.

Principles Of Consolidation

Principles of Consolidation The unaudited Condensed Consolidated Financial Statements include the accounts of MSC Industrial Direct Co., Inc., its wholly owned subsidiaries and entities in which it maintains a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation.

Impact Of COVID-19

Impact of COVID-19 The COVID-19 pandemic has impacted and may further impact the Company’s operations and the operations of the Company’s suppliers, vendors and freight carriers. However, demand from our traditional manufacturing end markets has recovered as certain restrictions implemented earlier in the pandemic have been lifted and economic and operating conditions have improved. In conjunction with the lifting of pandemic restrictions, the United States has experienced disruptions in the supply of certain products and services and constrained labor availability. These disruptions have affected the price and, at times, the availability of certain products and services necessary for the Company’s operations, including fuel, labor and certain products the Company sells or the inputs for such products. These disruptions are also impacting our customers and their ability to conduct their business or purchase our products and services. Such disruptions have impacted, and may continue to impact in the future, the Company’s business, financial condition and results of operations. The extent to which the COVID-19 pandemic, including new variants of COVID-19, will continue to impact the Company’s business, financial condition and results of operations is highly uncertain. Therefore, the Company cannot reasonably estimate future impacts of the COVID-19 pandemic at this time. The Company will continue to actively monitor the situation and may take further actions that alter our business operations as may be required by federal, state and local, and foreign authorities.

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements In March 2020, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides temporary optional expedients and exceptions to accounting guidance on contract modifications and hedge accounting to ease entities financial reporting burdens as the market transitions from LIBOR and other interbank offered rates to alternative reference rates. The guidance was effective upon issuance and will be applied prospectively to contract modifications made on or before December 31, 2022. The adoption of this guidance did not have a material impact on the Company’s unaudited Condensed Consolidated Financial Statements for the thirteen- and twenty-six-week periods ended February 26, 2022. Other pronouncements issued by the FASB or other authoritative accounting standards groups with future effective dates are either not applicable or are not expected to have a material impact on the Company’s unaudited Condensed Consolidated Financial Statements.