Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	12 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2019	May 31, 2017	May 31, 2009
Goodwill And Intangible Assets [Line Items]
Accumulated goodwill impairment losses	$ 156,300,000
Impairment losses	0	$ 0	$ 0
Intangible asset amortization expense	44,300,000	45,600,000	45,100,000
Future amortization expense of intangible asset in 2022	44,300,000
Future amortization expense of intangible asset in 2023	40,800,000
Future amortization expense of intangible asset in 2024	37,800,000
Future amortization expense of intangible asset in 2025	33,000,000.0
Future amortization expense of intangible asset in 2026	28,900,000
Impairment charge of indefinite lived intangible assets	$ 0
Impairment charge of intangible assets			4,200,000
SPG Segments
Goodwill And Intangible Assets [Line Items]
Accumulated goodwill impairment losses				$ 141,400,000
Impairment charge of definite lived intangible assets			2,200,000
SPG Segments | Customer-related Intangibles
Goodwill And Intangible Assets [Line Items]
Impairment charge of definite lived intangible assets			2,200,000
CPG Segment
Goodwill And Intangible Assets [Line Items]
Accumulated goodwill impairment losses					$ 14,900,000
Impairment charge of indefinite lived intangible assets			2,000,000.0
CPG Segment | Trade names
Goodwill And Intangible Assets [Line Items]
Impairment charge of indefinite lived intangible assets			$ 2,000,000.0
Consumer Segment
Goodwill And Intangible Assets [Line Items]
Impairment charge of indefinite lived intangible assets		4,000,000.0
Consumer Segment | Trade names | Restructuring Expense
Goodwill And Intangible Assets [Line Items]
Impairment charge of indefinite lived intangible assets		$ 4,000,000.0