Leases - Other Information Related to Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2023	May 31, 2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating Leases, Operating cash flows	$ 12,393	$ 13,514
Operating Leases, ROU assets obtained in exchange for lease liabilities	$ 16,272	$ 75,986
Operating Leases, Weighted-average remaining lease term (in years)	12 years 25 days	13 years 5 months 23 days
Operating Leases, Weighted-average discount rate	3.30%	2.97%
Financing Leases, Operating cash flows	$ 119	$ 123
Financing Leases, Financing cash flows	$ 54	101
Financing Leases, ROU assets obtained in exchange for lease liabilities		$ 2
Financing Leases, Weighted-average remaining lease term (in years)	36 years 5 months 12 days	37 years 4 months 9 days
Financing Leases, Weighted-average discount rate	3.75%	3.75%