Fair Value Measurements - Fair Value and Carrying Value of Cash and Cash Equivalents and Long-Term Debt (Detail) - USD ($) $ in Thousands	Nov. 30, 2023	May 31, 2023
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 262,746	$ 215,787
Long-term debt, including current portion	2,252,382	2,683,809
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	262,746	215,787
Long-term debt, including current portion	$ 2,064,051	$ 2,490,863