CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Aug. 31, 2012		Aug. 31, 2011
Net Sales	$ 1,046,714		$ 985,918
Cost of Sales	612,834		576,292
Gross Profit	433,880		409,626
Selling, General and Administrative Expenses	310,940		273,943
Interest Expense	18,430		17,806
Investment (Income), Net	(6,974)		(24)
Other Expense (Income), Net	39,422		(803)
Income Before Income Taxes	72,062		118,704
Provision for Income Taxes	34,195		35,364
Net Income	37,867		83,340
Less: Net Income Attributable to Noncontrolling Interests	3,954		6,529
Net Income Attributable to RPM International Inc. Stockholders	$ 33,913		$ 76,811
Average Number of Shares of Common Stock Outstanding:
Basic	128,805		128,094
Diluted	129,570		128,626
Earnings per Share of Common Stock Attributable to RPM International Inc. Stockholders
Basic	$ 0.26		$ 0.59
Diluted	$ 0.26	[1]	$ 0.59	[1]
Cash Dividends Declared per Share of Common Stock	$ 0.215		$ 0.210

[1] For the quarters ended August 31, 2012 and 2011, approximately 2,954,000 and 2,750,000 shares of stock, respectively, granted under stock-based compensation plans were excluded from the calculation of diluted earnings per share, as the effect would have been anti-dilutive.