Restructuring - Summary of Charges Recorded in Connection with Restructuring by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Feb. 28, 2025	Feb. 29, 2024		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
Cumulative Costs to Date	59,883			59,883
Total Expected Costs	72,872			72,872
MAP 2025 | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	1,974	6,069		14,115	9,085
Cumulative Costs to Date	46,599			46,599
Total Expected Costs	49,838			49,838
MAP 2025 | Facility Closure and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	1,482	290		4,100	456
Cumulative Costs to Date	6,192			6,192
Total Expected Costs	15,942			15,942
MAP 2025 | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	0	0		0	4,555
Cumulative Costs to Date	7,092			7,092
Total Expected Costs	7,092			7,092
MAP 2025 | Construction Products Segment
Restructuring Cost and Reserve [Line Items]
Current Year Charges	997	4,197		3,495	4,999
Cumulative Costs to Date	19,306			19,306
Total Expected Costs	28,185			28,185
MAP 2025 | Construction Products Segment | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	759	4,034		2,587	4,836
Cumulative Costs to Date	17,790			17,790
Total Expected Costs	20,152			20,152
MAP 2025 | Construction Products Segment | Facility Closure and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	238	163		908	163
Cumulative Costs to Date	1,516			1,516
Total Expected Costs	8,033			8,033
MAP 2025 | Performance Coatings Segment
Restructuring Cost and Reserve [Line Items]
Current Year Charges	292	581		1,371	6,303
Cumulative Costs to Date	12,494			12,494
Total Expected Costs	14,035			14,035
MAP 2025 | Performance Coatings Segment | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	227	579		1,294	1,623
Cumulative Costs to Date	5,153			5,153
Total Expected Costs	5,617			5,617
MAP 2025 | Performance Coatings Segment | Facility Closure and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	65	2		77	125
Cumulative Costs to Date	249			249
Total Expected Costs	1,326			1,326
MAP 2025 | Performance Coatings Segment | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	0	0	[1]	0	4,555	[1]
Cumulative Costs to Date	7,092			7,092
Total Expected Costs	7,092			7,092
MAP 2025 | Consumer Segment
Restructuring Cost and Reserve [Line Items]
Current Year Charges	1,785	835		9,598	884
Cumulative Costs to Date	20,148			20,148
Total Expected Costs	21,986			21,986
MAP 2025 | Consumer Segment | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	752	817		8,108	852
Cumulative Costs to Date	17,881			17,881
Total Expected Costs	18,220			18,220
MAP 2025 | Consumer Segment | Facility Closure and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	1,033	18		1,490	32
Cumulative Costs to Date	2,267			2,267
Total Expected Costs	3,766			3,766
MAP 2025 | Specialty Products Group Segment
Restructuring Cost and Reserve [Line Items]
Current Year Charges	382	746		3,751	1,910
Cumulative Costs to Date	7,985			7,985
Total Expected Costs	8,716			8,716
MAP 2025 | Specialty Products Group Segment | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	236	639		2,126	1,774
Cumulative Costs to Date	5,825			5,825
Total Expected Costs	5,899			5,899
MAP 2025 | Specialty Products Group Segment | Facility Closure and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	146	$ 107		1,625	$ 136
Cumulative Costs to Date	2,160			2,160
Total Expected Costs	2,817			2,817
MAP 2025 | Corporate/Other
Restructuring Cost and Reserve [Line Items]
Current Year Charges	0			0
Cumulative Costs to Date	(50)			(50)
Total Expected Costs	(50)			(50)
MAP 2025 | Corporate/Other | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	0			0
Cumulative Costs to Date	(50)			(50)
Total Expected Costs	$ (50)			$ (50)

[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.