Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Income Tax [Line Items]
Foreign capital loss carryforwards	$ 23,800,000
Total Valuation Allowances	30,509,000	$ 64,696,000
Unrecognized tax benefits that would impact effective tax rate, if recognized	5,600,000	7,000,000.0	$ 8,600,000
Accrued interest and penalties related to unrecognized tax benefits	3,200,000	2,900,000	$ 2,900,000
Unremitted foreign earnings	431,400,000
Deferred income tax liability	3,002,000	$ 17,871,000
Remaining unremitted foreign earnings	1,400,000,000
Provision for deferred income taxes	0
Capital Loss Carryforwards
Income Tax [Line Items]
Tax credit carryforwards	4,300,000
Tax credit carry forward amount subject to expiration	$ 3,700,000
Tax credit carryforwards expiration year	2024
U.S. foreign Tax Credit Carryforwards
Income Tax [Line Items]
Valuation allowance, reversal	$ 21,300,000
Non-U.S. Tax Loss Carryforwards
Income Tax [Line Items]
Valuation allowance, reversal	5,600,000
State
Income Tax [Line Items]
Net operating loss carryforwards	$ 1,400,000
Net operating loss carryforwards beginning expiration year	2023
Foreign
Income Tax [Line Items]
Tax credit carryforwards	$ 35,800,000
Tax credit carryforwards expiration year	2032
Foreign Net Operating Loss Carryforwards
Income Tax [Line Items]
Net operating loss carryforwards	$ 116,800,000
Net operating loss carryforwards beginning expiration year	2023
Net operating loss carryforwards subject to expiration	$ 5,000,000.0
Net operating loss carryforwards indefinite carry forward period	$ 111,800,000