Fair Value Measurements - Fair Value and Carrying Value of Cash and Cash Equivalents and Long-Term Debt (Detail) - USD ($) $ in Thousands	Feb. 28, 2023	May 31, 2022
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 193,870	$ 201,672
Long-term debt, including current portion	2,822,562	2,686,609
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	193,870	201,672
Long-term debt, including current portion	$ 2,614,247	$ 2,618,978