XML 58 R51.htm IDEA: XBRL DOCUMENT
v3.25.1

Other (Income) Expense, Net - Schedule of Other (Income) Expense, Net (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 28, 2025 | Feb. 29, 2024 | Feb. 28, 2025 | Feb. 29, 2024
Other Income and Expenses [Abstract] |  |  |  |
Pension non-service (credits) costs | $ (34) | $ 2,793 | $ (87) | $ 8,359
Other | (320) | (191) | (1,283) | (386)
Other (income) expense, net | $ (354) | $ 2,602 | $ (1,370) | $ 7,973

X
- Definition Other income (expense). + References No definition available. + Details
Name: | rpm_OtherIncomeExpense
Namespace Prefix: | rpm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Pension non-service (credits)/costs. + References No definition available. + Details
Name: | rpm_PensionNonServiceCreditsCosts
Namespace Prefix: | rpm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_OtherNonoperatingIncomeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration