Government Subsidies (Details) - USD ($) $ in Millions	3 Months Ended
Aug. 31, 2020	Aug. 31, 2019
Government Subsidies
Deferred payroll taxes, CARES Act	$ 40.8
Selling, General and Administrative Expense	45.3	$ 58.1
Cost of sales
Government Subsidies
Cost of Goods Sold	7.5
Selling general and administrative expenses
Government Subsidies
Selling, General and Administrative Expense	$ 0.2
COVID-19
Government Subsidies
Period for repayment of deferred payroll taxes, CARES Act	2 years
Deferred payroll taxes, CARES Act	$ 7.4
Proceeds from the Payroll Support Program under the CARES Act	57.2
Grant proceeds to be used for payment of employee wages, salaries and benefits under the CARES Act	48.5
Foreign subsidies received related to COVID-19	3.3
COVID-19 \| Payroll Support Program Promissory Note
Government Subsidies
Promissory note proceeds	$ 8.7
Debt instrument term	10 years
COVID-19 \| First five years \| Payroll Support Program Promissory Note
Government Subsidies
Interest rate (In percentage)	1.00%
COVID-19 \| Six to ten years \| Payroll Support Program Promissory Note
Government Subsidies
Interest rate (In percentage)	2.00%
COVID-19 \| First five years interest in kind \| Payroll Support Program Promissory Note
Government Subsidies
Interest rate (In percentage)	3.00%
COVID-19 \| Remaining term \| Payroll Support Program Promissory Note
Government Subsidies
Interest rate (In percentage)	1.00%

Employment subsidies received from foreign governments to assist in mitigating the financial impact from COVID-19.

No definition available.

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- Definition

Period over which payroll taxes that were deferred related to the CARES Act have to be repaid.

+ References

No definition available.

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- Definition

The proceeds received under the CARES Act Payroll Protection Program to be used exclusively for the continuation of payment of employee wages, salaries and benefits.

+ References

No definition available.

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- Definition

The cash inflow from received from the U.S. Treasury Department through the Payroll Support Program under the CARES Act.

+ References

No definition available.

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- Definition

Amount of deferral of the employer portion of Social Security Tax related to the Coronavirus Aid, Relief and Economic Security Act ("CARES Act").

+ References

No definition available.

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- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

+ References

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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