XML 99 R78.htm IDEA: XBRL DOCUMENT
v3.25.3

Restructuring and Other Costs - Summary of Restructuring Related Liabilities (Details) - USD ($) | 12 Months Ended
--- | ---
Aug. 30, 2025 | Aug. 31, 2024
Restructuring Reserve [Roll Forward] |  |
Beginning balance | $ 1,236,000 | $ 1,137,000
Additions | 10,576,000 | 14,558,000
Payments and other adjustments | (8,120,000) | (14,459,000)
Ending balance | 3,692,000 | 1,236,000
Consulting-related costs |  |
Restructuring Reserve [Roll Forward] |  |
Beginning balance | 359,000 | 100,000
Additions | 5,258,000 | 7,143,000
Payments and other adjustments | (5,322,000) | (6,884,000)
Ending balance | 295,000 | 359,000
Associate severance and separation costs |  |
Restructuring Reserve [Roll Forward] |  |
Beginning balance | 697,000 | 1,037,000
Additions | 5,318,000 | 6,765,000
Payments and other adjustments | (2,618,000) | (7,105,000)
Ending balance | 3,397,000 | 697,000
Other exit-related costs |  |
Restructuring Reserve [Roll Forward] |  |
Beginning balance | 180,000 | 0
Additions | 0 | 650,000
Payments and other adjustments | (180,000) | (470,000)
Ending balance | $ 0 | $ 180,000

X
- Definition Consulting and severance costs + References No definition available. + Details
Name: | msm_ConsultingAndSeveranceCosts
Namespace Prefix: | msm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 17 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-17 + Details
Name: | us-gaap_PaymentsForRestructuring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
Name: | us-gaap_RestructuringReserve
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_RestructuringReserveRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=msm_ConsultingRelatedCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_EmployeeSeveranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=msm_OtherExitRelatedCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |