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Reconciliation of Income Tax Expense (Benefit) Computed by Applying U.S. Statutory Federal Income Tax Rate against Income (Loss) before Income Taxes to Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands | 12 Months Ended
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May 31, 2022 | May 31, 2021 | May 31, 2020
Income Tax Disclosure [Abstract] |  |  |
Income tax expense at the U.S. statutory federal income tax rate | $ 127,428 | $ 140,372 | $ 85,630
Foreign rate differential and other foreign tax adjustments | 6,278 | 11,942 | 3,433
State and local income taxes, net | 20,393 | 18,625 | 11,651
Impact of GILTI provisions | 1,709 | 1,598 | 3,051
Nondeductible business expense | 532 | 616 | 2,005
Valuation allowance | (32,720) | (4,389) | 14,008
Deferred tax liability for unremitted foreign earnings | (10,686) | 5,348 | (5,527)
Changes in unrecognized tax benefits | (1,682) | (1,847) | 1,292
Equity-based compensation | (1,776) | (8,651) | (5,162)
FY19 GILTI impact of issued regulations |  |  | (4,348)
Other | 4,857 | 1,324 | (3,351)
Provision for Income Taxes | $ 114,333 | $ 164,938 | $ 102,682
Effective Income Tax Rate | 18.80% | 24.70% | 25.20%

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