Note 2 - Acquisition (Detail) - Sources and Uses of Funds in Connection With the Acquisition (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	9 Months Ended
	Aug. 19, 2011	Feb. 29, 2012	Feb. 28, 2013	May 31, 2012
Sources:
Proceeds from Loans		$ 991,406	$ 288,076
Proceeds from equity contributions	735,187
Company cash used in transaction	301,053
	2,027,646
Uses:
Equity purchase price	1,939,387
Transaction costs	88,259			2,000
	2,027,646
Term Loans [Member]
Sources:
Proceeds from Loans	596,550
Notes [Member]
Sources:
Proceeds from Loans	$ 394,856