Goodwill and Other Long-Lived Assets - Summary of Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands		12 Months Ended
		May 31, 2024		May 31, 2023
Goodwill [Line Items]
Goodwill, Beginning Balance		$ 336,178		$ 321,436
Acquisitions and purchase accounting adjustments		8,327	[1]	15,947
Impairment losses	[2]	(14,210)
Translation adjustments		1,300		(1,205)
Goodwill, Ending Balance		331,595		336,178
Total Reportable Segments
Goodwill [Line Items]
Goodwill, Beginning Balance		322,533		306,781
Acquisitions and purchase accounting adjustments		8,327	[1]	15,947
Translation adjustments		735		(195)
Goodwill, Ending Balance		331,595		322,533
Consumer products | Total Reportable Segments
Goodwill [Line Items]
Goodwill, Beginning Balance		257,320		241,373
Acquisitions and purchase accounting adjustments		8,327	[1]	15,947
Goodwill, Ending Balance		265,647		257,320
Building Products | Total Reportable Segments
Goodwill [Line Items]
Goodwill, Beginning Balance		65,213		65,408
Translation adjustments		735		(195)
Goodwill, Ending Balance		65,948		65,213
Other
Goodwill [Line Items]
Goodwill, Beginning Balance		13,645		14,655
Impairment losses	[2]	(14,210)
Translation adjustments		$ 565		(1,010)
Goodwill, Ending Balance				$ 13,645

[1] For additional information regarding our acquisitions, refer to “Note Q - Acquisitions.”

[2] Reflects impairment charges related to the deconsolidation of our Sustainable Energy Solutions business. Refer to the “Impairment of Goodwill and Long-Lived Assets” section below for additional information.