Summary of Trade Accounts Receivable Net of Allowances and Net Contract Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2022	May 31, 2021
Disaggregation Of Revenue [Line Items]
Trade accounts receivable, less allowances	$ 1,432,632	$ 1,280,806
Contract assets	57,234	33,217
Contract liabilities - short-term	(44,938)	(33,112)
Net Contract Assets	12,296	$ 105
Change in Contract with Customer, Asset and Liability [Abstract]
Change in trade accounts receivable, less allowances	151,826
Change in contract assets	24,017
Change in Net Contract Assets (Liabilities)	$ 12,191
Percentage of change in trade accounts receivable, less allowances	11.90%
Percentage of change in contract assets	72.30%
Percentage of change in Net Contract Assets/(Liabilities)	11610.50%
Short-term
Change in Contract with Customer, Asset and Liability [Abstract]
Change in contract liabilities	$ (11,826)
Percentage of change in contract liabilities	35.70%