Note 9 - Long-Term Debt (Details) - Long Term Debt (USD $) In Thousands, unless otherwise specified	Feb. 28, 2014	May 31, 2013
Note 9 - Long-Term Debt (Details) - Long Term Debt [Line Items]
Term Loan Facility, net of $9,928 and $11,384 debt discounts, respectively	$ 646,774	$ 650,293
Notes, net of $3,998 and $4,370 debt discounts, respectively	396,002	395,630
Capital lease agreements	33	67
	1,042,809	1,045,990
Less current portion, net of discounts	(4,624)	(6,712)
Long-term debt, net of current portion	$ 1,038,185	$ 1,039,278