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- Definition

Share based compensation arrangement by share based payment award, options, contractual term one.

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements.

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- Definition

Amount of cost for defined contribution plan.

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

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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- Definition

Discount rate from fair value on purchase date that participants pay for shares.

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- Definition

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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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

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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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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Amount of cost expensed and capitalized for award under share-based payment arrangement.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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Equity Compensation Plans and Other Incentive Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	May 31, 2026	May 31, 2025	May 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares available for grant	11,500,000	13,800,000	16,800,000
Options Exercisable, Weighted Average Exercise Price	$ 16.66	$ 19.53	$ 26.11
Compensation expense related to share based awards	$ 13.4	$ 17.3	$ 13.8
Remaining compensation cost to be expensed in future periods for non-vested options	$ 9.0
Weighted average expense recognition period	2 years 4 months 24 days
Number of shares purchased by employees	300,000	200,000	100,000
Defined contribution 401(K) benefit expense	$ 4.2	$ 3.7	$ 3.4
Accrued Bonus	$ 13.5	1.8
First 3% employees deferred amount
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Defined contribution plan employer matching contribution	100.00%
Next 2% employees deferred amount
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Defined contribution plan employer matching contribution	50.00%
Restricted Stock Units (RSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted average expense recognition period	1 year 3 months 18 days
Restricted stock units vested- fair value	$ 8.1	$ 5.2	$ 3.8
Weighted average grant date fair value	$ 6	$ 15.49	$ 15.55
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	$ 8.2
Performance Stock Units (PSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted average expense recognition period	2 years
Weighted average grant date fair value	$ 6.28
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	$ 3.6
2023 Omnibus Incentive Plan \| Performance Stock Units (PSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	3 years
Employee Stock Purchase Plan \| 2011 Employee Stock Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares available for grant	300,000
Number of shares authorized for grant	1,000,000
Annual maximum limit percentage of compensation to purchase shares	5.00%
Employee stock purchase plan stock price percentage	10.00%
Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	3 years
Stock option contractual terms	5 years
Minimum \| Performance Stock Units (PSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage of shareholder return over performance period	0.00%
Minimum \| 2018 Omnibus Incentive Plan \| Restricted Stock Units (RSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	3 years
Average
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock option contractual terms	7 years
Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	5 years
Stock option contractual terms	10 years
Maximum \| Performance Stock Units (PSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage of shareholder return over performance period	240.00%
Maximum \| 2018 Omnibus Incentive Plan \| Restricted Stock Units (RSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	5 years