XML 22 R15.htm IDEA: XBRL DOCUMENT
v3.24.4

Investment (Income), Net | 6 Months Ended
--- | ---
Nov. 30, 2024
Other Income and Expenses [Abstract] |
Investment (Income), Net | NOTE 5 — INVESTMENT (INCOME), NET Investment (income), net, consists of the following components:
|  | Three Months Ended |  |  | Six Months Ended |
|  | November 30, |  | November 30, |  |  | November 30, |  | November 30, |
(In thousands) |  | 2024 |  | 2023 |  |  | 2024 |  | 2023 |
Interest (income) |  | $ | (3,080 | ) | $ | (4,897 | ) |  | $ | (7,063 | ) | $ | (10,348 | )
Net (gain) loss on marketable securities |  |  | (4,713 | ) |  | 225 |  |  |  | (10,684 | ) |  | (6,226 | )
Dividend (income) |  |  | (733 | ) |  | (617 | ) |  |  | (1,805 | ) |  | (1,154 | )
Investment (income), net |  | $ | (8,526 | ) | $ | (5,289 | ) |  | $ | (19,552 | ) | $ | (17,728 | )
Net (Gain) Loss on Marketable Securities
|  | Three Months Ended |  |  | Six Months Ended |
|  | November 30, |  | November 30, |  |  | November 30, |  | November 30, |
(In thousands) |  | 2024 |  | 2023 |  |  | 2024 |  | 2023 |
Unrealized (gains) losses on marketable equity securities |  | $ | (4,727 | ) | $ | 103 |  |  | $ | (10,505 | ) | $ | (6,424 | )
Realized (gains) losses on marketable equity securities |  |  | (70 | ) |  | 87 |  |  |  | (265 | ) |  | 132 |
Realized losses on available-for-sale debt securities |  |  | 84 |  |  | 35 |  |  |  | 86 |  |  | 66 |
Net (gain) loss on marketable securities |  | $ | (4,713 | ) | $ | 225 |  |  | $ | (10,684 | ) | $ | (6,226 | )

X
- Definition Investment income (expense) disclosure. + References No definition available. + Details
Name: | rpm_InvestmentIncomeExpenseDisclosureTextBlock
Namespace Prefix: | rpm_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
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