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	[1]	$ 985,918
Cost of Sales	612,834	[1]	576,292
Gross Profit	433,880	[1]	409,626
Selling, General and Administrative Expenses	310,940	[1]	273,943
Estimated Loss Contingency	11,418	[1]
Interest Expense	18,430	[1]	17,806
Investment (Income), Net	(6,974)	[1]	(24)
Other Expense (Income), Net	39,422	[1]	(803)
Income Before Income Taxes	60,644	[1]	118,704
Provision for Income Taxes	30,025	[1]	35,364
Net Income	30,619	[1]	83,340
Less: Net Income Attributable to Noncontrolling Interests	3,954	[1]	6,529
Net Income Attributable to RPM International Inc. Stockholders	$ 26,665	[1]	$ 76,811
Average Number of Shares of Common Stock Outstanding:
Basic	128,805	[1]	128,094
Diluted	129,570	[1]	128,626
Earnings per Share of Common Stock Attributable to RPM International Inc. Stockholders
Basic	$ 0.20	[1]	$ 0.59
Diluted	$ 0.20	[1],[2]	$ 0.59	[2]
Cash Dividends Declared per Share of Common Stock	$ 0.215	[1]	$ 0.210

[1] Restated

[2] 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.