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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
May 31, 2026 | May 31, 2025 | May 31, 2024
Income Taxes [Line Items] |  |  |
Foreign tax credits | $ 15.1 | $ 9.4 | $ 7.1
Research and development credit | 0.7 | 2.1 | 0.6
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 0.8 | 0.4 | $ 0.2
Unrecognized tax benefits that would impact the tax effective rate | $ 5.0 | $ 3.8 |
Minimum effective tax rate | 15.00% |  |
Ireland |  |  |
Income Taxes [Line Items] |  |  |
Total top-up tax under Pillar Two | $ 1.0 |  |

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign tax credit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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