Investments in Unconsolidated Affiliates - Schedule of Summarized Financial Information for Unconsolidated Affiliates (Detail) - USD ($) $ in Thousands	May 31, 2026	May 31, 2025
Investments in and Advances to Affiliates [Line Items]
Current assets	$ 524,474	$ 685,370
Current liabilities	221,426	196,842
Equity (deficit)	1,027,040	937,187
WAVE \| Equity Method Investment, Nonconsolidated Investee, Other
Investments in and Advances to Affiliates [Line Items]
Current assets	118,169	119,776
Noncurrent assets	82,698	90,546
Current liabilities	27,444	27,204
Noncurrent liabilities	381,004	387,302
Equity (deficit)	(207,581)	(204,184)
ClarkDietrich \| Equity Method Investment, Nonconsolidated Investee, Other
Investments in and Advances to Affiliates [Line Items]
Current assets	386,619	377,854
Noncurrent assets	203,011	192,636
Current liabilities	181,165	165,484
Noncurrent liabilities	36,374	39,963
Equity (deficit)	372,091	365,042
Other \| Equity Method Investment, Nonconsolidated Investee, Other
Investments in and Advances to Affiliates [Line Items]
Current assets	96,667	110,518
Noncurrent assets	87,527	102,097
Current liabilities	61,166	52,147
Noncurrent liabilities	66,023	65,593
Equity (deficit)	$ 57,005	$ 94,875

Amount of asset recognized for present right to economic benefit, classified as current.

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