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v3.20.2

Product Warranties (Details) | 9 Months Ended
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May 30, 2020
Minimum [Member] |
Product warranties with original equipment manufacturers | 30 days
Maximum [Member] |
Warranty period | 1 year
Product warranties with original equipment manufacturers | 90 days

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- Definition Product warranties with original equipment manufacturers + References No definition available. + Details
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Namespace Prefix: | msm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Warranty Period + References No definition available. + Details
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Namespace Prefix: | msm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |