Note 9 - Long-Term Debt (Details) - Long Term Debt (USD $) In Thousands, unless otherwise specified	Nov. 30, 2013	May 31, 2013
Note 9 - Long-Term Debt (Details) - Long Term Debt [Line Items]
Term Loan Facility, net of $10,415 and $11,384 debt discounts, respectively	$ 647,614	$ 650,293
Notes, net of $4,123 and $4,370 debt discounts, respectively	395,877	395,630
Capital lease agreements	37	67
	1,043,528	1,045,990
Less current portion, net of discounts	(4,653)	(6,712)
Long-term debt, net of current portion	$ 1,038,875	$ 1,039,278