Consolidated Statements of Income - USD ($) shares in Thousands		12 Months Ended
		May 31, 2024	May 31, 2023	May 31, 2022
Income Statement [Abstract]
Net Sales	[1]	$ 7,335,277,000	$ 7,256,414,000	$ 6,707,728,000
Cost of Sales		4,320,688,000	4,508,370,000	4,274,675,000
Gross Profit		3,014,589,000	2,748,044,000	2,433,053,000
Selling, general and administrative expense		2,113,585,000	1,956,040,000	1,788,284,000
Restructuring Expense		30,008,000	15,465,000	6,276,000
Goodwill Impairment		0	36,745,000	0
Interest Expense		117,969,000	119,015,000	87,928,000
Investment (Income) Expense, Net		(44,974,000)	(9,748,000)	7,595,000
(Gain) on Sales of Assets and Business, Net		0	(28,632,000)	(51,983,000)
Other Expense (Income), Net		10,164,000	9,777,000	(11,846,000)
Income Before Income Taxes		787,837,000	649,382,000	606,799,000
Provision for Income Taxes		198,395,000	169,651,000	114,333,000
Net Income		589,442,000	479,731,000	492,466,000
Less: Net Income Attributable to Noncontrolling Interests		1,045,000	1,040,000	985,000
Net Income Attributable to RPM International Inc. Stockholders		$ 588,397,000	$ 478,691,000	$ 491,481,000
Average Number of Shares of Common Stock Outstanding:
Basic		127,767	127,507	127,948
Diluted	[2]	128,340	128,816	129,580
Earnings per Share of Common Stock Attributable to RPM International Inc. Stockholders:
Basic		$ 4.58	$ 3.74	$ 3.81
Diluted		$ 4.56	$ 3.72	$ 3.79

[1] It is not practicable to obtain the information needed to disclose revenues attributable to each of our product lines.

[2] The dilutive effect of performance-based restricted stock units is included when they have met minimum performance thresholds. The dilutive effect of SARs includes all outstanding awards except awards that are considered antidilutive. SARs are antidilutive when the exercise price exceeds the average market price of the Company’s common shares during the periods presented. For the years ended May 31, 2024, 2023 and 2022, approximately 260,000, 750,000 and 655,000 shares of stock, respectively, granted under stock-based compensation plans were excluded from the calculation of diluted EPS, as the effect would have been anti-dilutive.