Restructuring - Summary of Charges Recorded in Connection with Restructuring by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2025	Nov. 30, 2024
Restructuring Cost and Reserve [Line Items]
Current Year Charges	$ 4,531	$ 7,557	$ 13,345	$ 14,759
MAP 2025
Restructuring Cost and Reserve [Line Items]
Current Year Charges	4,531	7,557	13,345	14,759
Cumulative Costs to Date	79,992		79,992
Total Expected Costs	88,424		88,424
MAP 2025 | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	2,362	5,682	9,438	12,141
Cumulative Costs to Date	59,615		59,615
Total Expected Costs	62,030		62,030
MAP 2025 | Facility Closure and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	2,169	1,875	3,907	2,618
Cumulative Costs to Date	12,753		12,753
Total Expected Costs	18,770		18,770
MAP 2025 | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	0		0
Cumulative Costs to Date	7,624		7,624
Total Expected Costs	7,624		7,624
MAP 2025 | CPG Segment
Restructuring Cost and Reserve [Line Items]
Current Year Charges	1,863	1,232	4,459	2,498
Cumulative Costs to Date	26,555		26,555
Total Expected Costs	33,668		33,668
MAP 2025 | CPG Segment | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	634	938	2,575	1,828
Cumulative Costs to Date	22,293		22,293
Total Expected Costs	24,571		24,571
MAP 2025 | CPG Segment | Facility Closure and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	1,229	294	1,884	670
Cumulative Costs to Date	4,262		4,262
Total Expected Costs	9,097		9,097
MAP 2025 | PCG Segment
Restructuring Cost and Reserve [Line Items]
Current Year Charges	770	2,478	4,713	3,301
Cumulative Costs to Date	25,135		25,135
Total Expected Costs	26,254		26,254
MAP 2025 | PCG Segment | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	268	1,336	3,575	1,818
Cumulative Costs to Date	13,913		13,913
Total Expected Costs	14,050		14,050
MAP 2025 | PCG Segment | Facility Closure and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	502	1,142	1,138	1,483
Cumulative Costs to Date	4,130		4,130
Total Expected Costs	5,112		5,112
MAP 2025 | PCG Segment | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	0		0
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	1,898	3,847	4,173	8,960
Cumulative Costs to Date	28,352		28,352
Total Expected Costs	28,552		28,552
MAP 2025 | Consumer Segment | Severance and benefit costs (credits)
Restructuring Cost and Reserve [Line Items]
Current Year Charges	1,460	3,408	3,288	8,495
Cumulative Costs to Date	23,459		23,459
Total Expected Costs	23,459		23,459
MAP 2025 | Consumer Segment | Facility Closure and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	438	$ 439	885	$ 465
Cumulative Costs to Date	4,361		4,361
Total Expected Costs	4,561		4,561
MAP 2025 | Consumer Segment | Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Current Year Charges	0		0
Cumulative Costs to Date	532		532
Total Expected Costs	532		532
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)