Restructuring - Summary of Charges Recorded in Connection with Restructuring by Reportable Segment (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Feb. 28, 2025	Feb. 29, 2024		Aug. 31, 2023	Feb. 28, 2025	Feb. 29, 2024
Restructuring Cost and Reserve [Line Items]
Current Year Charges	$ 3,456	$ 6,359			$ 18,215	$ 14,096
MAP 2025
Restructuring Cost and Reserve [Line Items]
Current Year Charges	3,456	6,359			18,215	14,096
MAP 2025 | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	0	0			0	4,555
MAP 2025 | Performance Coatings Segment
Restructuring Cost and Reserve [Line Items]
Current Year Charges	292	581			1,371	6,303
MAP 2025 | Performance Coatings Segment | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	$ 0	$ 0	[1]		$ 0	4,555	[1]
MAP 2025 | Performance Coatings Segment | Trade name | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Impairment of indefinite-lived assets				$ 3,300		$ 3,300

[1] Of the $4.6 million of other restructuring costs incurred for the nine-month period ending February 29, 2024, $3.3 million is associated with the impairment of an indefinite-lived tradename as described above.