Restructuring - Summary of Charges Recorded in Connection with Restructuring by Reportable Segment (Parenthetical) (Details) - USD ($) $ in Thousands		3 Months Ended
		Aug. 31, 2024	Aug. 31, 2023
Restructuring Cost and Reserve [Line Items]
Current Year Charges		$ 7,202	$ 6,498
MAP 2025
Restructuring Cost and Reserve [Line Items]
Current Year Charges		7,202	6,498
MAP 2025 | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges		0	4,555
MAP 2025 | Performance Coatings Segment
Restructuring Cost and Reserve [Line Items]
Current Year Charges		155	5,416
MAP 2025 | Performance Coatings Segment | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	[1]	$ 0	4,555
MAP 2025 | Performance Coatings Segment | Trade name | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Impairment of indefinite-lived assets			$ 3,300

[1] Of the $4.6 million of other restructuring costs incurred for the three-month period ending August 31, 2023, $3.3 million is associated with the impairment of an indefinite-lived tradename as described above.