Commitments and Contingencies (Details 1) (USD $) In Millions, unless otherwise specified	May 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Future Minimum Payments Due in Fiscal 2014	$ 36.9
Operating Leases, Future Minimum Payments, Due in Fiscal 2015	33.1
Operating Leases, Future Minimum Payments, Due in Fiscal 2016	24.9
Operating Leases, Future Minimum Payments, Due in Fiscal 2017	19.5
Operating Leases, Future Minimum Payments, Due in Fiscal 2018	13.4
Operating Leases, Future Minimum Payments, Due Thereafter	$ 15.6

Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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- Definition

Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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