Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stock-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax stock-based compensation expense	$ 4,248,000	$ 4,854,000	$ 7,551,000	$ 9,710,000
Non-Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-qualified stock options, granted			54,500,000
Non-qualified stock option, per share weighted average price			$ 60.19
Non-qualified stock option, fair value, per share price			$ 19.73
Pre-tax stock-based compensation, period of recognition			3 years
Pre-tax stock-based compensation expense			$ 1,075,080
Service-Based Restricted Common Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax stock-based compensation, period of recognition			3 years
Pre-tax stock-based compensation expense			$ 9,048,253,000
Restricted common shares, granted			154,050
Restricted common shares, fair value per share			$ 58.11
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax stock-based compensation expense			$ 2,191,000
Restricted common shares, granted			36,400
Pre-tax stock-based compensation, period of recognition			3 years