XML 55 R43.htm IDEA: XBRL DOCUMENT v3.21.1

Leases (Narrative) (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Feb. 27, 2021 USD ($)	Feb. 27, 2021 USD ($) store
Leases [Abstract]
Number of locations closed | store		73
Operating lease asset impairments | $	$ 16,736	$ 16,736

X

- Definition

Restructuring and Related Cost, Number of locations closed

+ References

No definition available.

+ Details

Name:	msm_RestructuringAndRelatedCostNumberOfLocationsClosed
Namespace Prefix:	msm_
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_LeasesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of loss from impairment of right-of-use asset from operating lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 25
-Paragraph 6
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=77888369&loc=SL77918431-209957

+ Details

Name:	us-gaap_OperatingLeaseImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration