XML 47 R35.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Consolidation, Noncontrolling Interests and Basis of Presentation - Additional Information (Detail) | Aug. 31, 2022
--- | ---
Accounting Policies [Abstract] |
Percentage of controlled subsidiary's earnings | 100.00%

X
- Definition Percentage of subsidiary earnings included in consolidation. + References No definition available. + Details
Name: | rpm_PercentageOfSubsidiaryEarningsIncludedInConsolidation
Namespace Prefix: | rpm_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration