Note 9 - Long-Term Debt (Details) - Long Term Debt (USD $) In Thousands, unless otherwise specified	Aug. 31, 2013	May 31, 2013
Note 9 - Long-Term Debt (Details) - Long Term Debt [Line Items]
Term Loan Facility, net of $10,904 and $11,384 debt discounts, respectively	$ 649,115	$ 650,293
Notes, net of $4,248 and $4,370 debt discounts, respectively	395,752	395,630
Capital lease agreements	53	67
	1,044,920	1,045,990
Less current portion, net of discounts	(4,689)	(6,712)
Long-term debt, net of current portion	$ 1,040,231	$ 1,039,278

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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