v3.26.1
Goodwill and Other Intangible Assets - Additional Information (Detail)
 3 Months Ended 12 Months Ended
Jun. 01, 2023
USD ($)
Aug. 31, 2023
USD ($)
May 31, 2026
USD ($)
Segment
ReportingUnit
May 31, 2025
USD ($)
Segment
May 31, 2024
USD ($)
Goodwill And Intangible Assets [Line Items]          
Accumulated goodwill impairment losses     $ 204,400,000    
Goodwill impairment     0 $ 11,352,000 $ 0
Intangible asset amortization expense     $ 45,800,000 $ 45,500,000 39,100,000
Number of reportable segments | Segment     3 4  
Goodwill     $ 1,688,164,000 $ 1,617,626,000 1,308,911,000
Impairment loss of goodwill on annual impairment test     0   0
Future amortization expense of intangible asset in 2027     45,700,000    
Future amortization expense of intangible asset in 2028     43,400,000    
Future amortization expense of intangible asset in 2029     42,000,000    
Future amortization expense of intangible asset in 2030     39,900,000    
Future amortization expense of intangible asset in 2031     37,100,000    
Universal Sealants | USL Restructuring          
Goodwill And Intangible Assets [Line Items]          
Loss on sale of Bridgecare services division   $ 4,500,000      
Color Group Reporting Unit          
Goodwill And Intangible Assets [Line Items]          
Goodwill       0  
CPG Segment          
Goodwill And Intangible Assets [Line Items]          
Accumulated goodwill impairment losses     14,900,000    
Goodwill impairment       0  
Goodwill     534,596,000 518,623,000 485,135,000
Consumer Segment          
Goodwill And Intangible Assets [Line Items]          
Accumulated goodwill impairment losses     152,800,000    
Goodwill impairment       11,352,000  
Goodwill     $ 799,381,000 768,079,000 543,966,000
Consumer Segment | Trade Names          
Goodwill And Intangible Assets [Line Items]          
Impairment charge of indefinite lived intangible assets       $ 1,700,000 $ 1,000,000
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]       Less: Selling, General and Administrative Expenses Less: Selling, General and Administrative Expenses
Consumer Segment | Color Group Reporting Unit          
Goodwill And Intangible Assets [Line Items]          
Goodwill impairment       $ 11,400,000  
Consumer Segment | DayGlo and Kirker Reporting Units          
Goodwill And Intangible Assets [Line Items]          
Number of reporting units | ReportingUnit     1    
PCG Segment          
Goodwill And Intangible Assets [Line Items]          
Accumulated goodwill impairment losses     $ 36,700,000    
Goodwill impairment       0  
Goodwill     $ 354,187,000 $ 330,924,000 $ 279,810,000
Goodwill transferred $ 11,400,000        
PCG Segment | Other Restructuring Costs | Trade names          
Goodwill And Intangible Assets [Line Items]          
Impairment charge of indefinite lived intangible assets   $ 3,300,000      
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]   Restructuring charges      
PCG Segment | The Industrial Coatings Group Reporting Unit          
Goodwill And Intangible Assets [Line Items]          
Number of reporting units | ReportingUnit     1    
CPG, PCG and Consumer          
Goodwill And Intangible Assets [Line Items]          
Number of reportable segments | Segment     3