Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) $ in Thousands	12 Months Ended
May 31, 2020 USD ($)
Income Tax Disclosure [Abstract]
Beginning Balance	$ 1,621
Decreases - tax positions taken in prior years	(83)
Increases - tax positions taken in prior years	1,419
Increases - current tax positions	35
Settlements	(1,118)
Lapse of statutes of limitations	(156)
Ending Balance	$ 1,718

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Amount of unrecognized tax benefits.

+ References

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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