Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Feb. 28, 2014		Feb. 28, 2013		Feb. 28, 2014		Feb. 28, 2013
Net Sales	$ 863,410		$ 843,736		$ 3,099,571		$ 2,907,876
Cost of Sales	505,384		500,172		1,784,528		1,705,431
Gross Profit	358,026		343,564		1,315,043		1,202,445
Selling, General and Administrative Expenses	322,205		318,638		1,000,712		955,339
Loss Contingency			68,846				68,846
Interest Expense	19,740		20,506		61,274		58,804
Investment (Income), Net	(7,751)		(6,317)		(13,650)		(14,655)
Other (Income) Expense, Net	(1,353)		4,714		(3,278)		53,830
Income (Loss) Before Income Taxes	25,185		(62,823)		269,985		80,281
Provision (Benefit) for Income Taxes	8,274		(20,631)		77,771		38,519
Net Income (Loss)	16,911		(42,192)		192,214		41,762
Less: Net Income Attributable to Noncontrolling Interests	690		164		9,333		8,537
Net Income (Loss) Attributable to RPM International Inc. Stockholders	$ 16,221		$ (42,356)		$ 182,881		$ 33,225
Average Number of Shares of Common Stock Outstanding:
Basic	129,453		129,013		129,407		128,900
Diluted	129,453	[1],[2]	129,013	[1],[2]	131,569	[1],[2]	129,722	[1],[2]
Earnings (Loss) per Share of Common Stock Attributable to RPM International Inc. Stockholders:
Basic	$ 0.12		$ (0.33)		$ 1.38		$ 0.25
Diluted	$ 0.12		$ (0.33)		$ 1.37		$ 0.25
Cash Dividends Declared per Share of Common Stock	$ 0.240		$ 0.225		$ 0.705		$ 0.665

[1] For the quarter ended February 28, 2014, basic weighted-average shares outstanding and basic net income available to common shareholders are used in calculating diluted earnings per share under the two-class method, as that method resulted in the most dilutive earnings per share.

[2] For the quarter ended February 28, 2013, basic weighted-average shares outstanding are used in calculating diluted earnings per share under the treasury stock method, as the result under the two-class method would have been anti-dilutive.