XML 112 R94.htm IDEA: XBRL DOCUMENT
v3.22.2.2

EQUITY - Additional Information (Details) - Miracle-Gro | Sep. 30, 2022
--- | ---
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Ownership of outstanding common shares (percent) | 26.00%
Condition for ownership of voting stock (percent) | 49.00%
Tender offer for ownership of voting power (as a percent) | 100.00%
Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Condition for ownership of voting stock (percent) | 50.00%

X
- Definition Maximum allowable percentage of voting power upon conversion. + References No definition available. + Details
Name: | smg_ConditionForOwnershipOfVotingStockPercentage
Namespace Prefix: | smg_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of continuing ownership interest by significant shareholders. + References No definition available. + Details
Name: | smg_OwnershipOfOutstandingCommonShares1
Namespace Prefix: | smg_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tender Offer For Ownership Of Voting Power, Percentage + References No definition available. + Details
Name: | smg_TenderOfferForOwnershipOfVotingPowerPercentage
Namespace Prefix: | smg_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=smg_MiracleGroMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |