Results of Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	May 31, 2021
Segment Reporting Information [Line Items]
Net Sales	$ 1,650,420	$ 1,606,670
Income (Loss) Before Income Taxes	181,471	241,369
Identifiable Assets	6,166,204		$ 6,252,969
CPG Segment
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	114,357	98,349
Identifiable Assets	1,959,388		1,815,303
PCG Segment
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	35,077	28,514
Identifiable Assets	1,059,611		1,051,334
Consumer Segment
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	45,915	132,722
Identifiable Assets	2,156,400		2,386,703
SPG Segments
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	24,556	20,449
Identifiable Assets	770,902		772,540
Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,650,420	1,606,670
Operating Segments | CPG Segment
Segment Reporting Information [Line Items]
Net Sales	644,362	547,690
Operating Segments | PCG Segment
Segment Reporting Information [Line Items]
Net Sales	285,595	259,788
Operating Segments | Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	538,408	641,168
Operating Segments | SPG Segments
Segment Reporting Information [Line Items]
Net Sales	182,055	158,024
Operating Segments | Domestic
Segment Reporting Information [Line Items]
Net Sales	1,130,317	1,127,104
Operating Segments | Domestic | CPG Segment
Segment Reporting Information [Line Items]
Net Sales	372,313	327,961
Operating Segments | Domestic | PCG Segment
Segment Reporting Information [Line Items]
Net Sales	176,194	156,062
Operating Segments | Domestic | Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	432,399	509,584
Operating Segments | Domestic | SPG Segments
Segment Reporting Information [Line Items]
Net Sales	149,411	133,497
Operating Segments | Foreign
Segment Reporting Information [Line Items]
Net Sales	520,103	479,566
Operating Segments | Foreign | CPG Segment
Segment Reporting Information [Line Items]
Net Sales	272,049	219,729
Operating Segments | Foreign | PCG Segment
Segment Reporting Information [Line Items]
Net Sales	109,401	103,726
Operating Segments | Foreign | Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	106,009	131,584
Operating Segments | Foreign | SPG Segments
Segment Reporting Information [Line Items]
Net Sales	32,644	24,527
Operating Segments | Foreign | Canada
Segment Reporting Information [Line Items]
Net Sales	131,093	123,582
Operating Segments | Foreign | Canada | CPG Segment
Segment Reporting Information [Line Items]
Net Sales	76,559	55,642
Operating Segments | Foreign | Canada | PCG Segment
Segment Reporting Information [Line Items]
Net Sales	18,452	17,112
Operating Segments | Foreign | Canada | Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	33,942	48,908
Operating Segments | Foreign | Canada | SPG Segments
Segment Reporting Information [Line Items]
Net Sales	2,140	1,920
Operating Segments | Foreign | Europe
Segment Reporting Information [Line Items]
Net Sales	272,855	256,960
Operating Segments | Foreign | Europe | CPG Segment
Segment Reporting Information [Line Items]
Net Sales	130,418	108,720
Operating Segments | Foreign | Europe | PCG Segment
Segment Reporting Information [Line Items]
Net Sales	57,835	63,634
Operating Segments | Foreign | Europe | Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	60,267	67,610
Operating Segments | Foreign | Europe | SPG Segments
Segment Reporting Information [Line Items]
Net Sales	24,335	16,996
Operating Segments | Foreign | Latin America
Segment Reporting Information [Line Items]
Net Sales	61,624	48,304
Operating Segments | Foreign | Latin America | CPG Segment
Segment Reporting Information [Line Items]
Net Sales	47,422	34,853
Operating Segments | Foreign | Latin America | PCG Segment
Segment Reporting Information [Line Items]
Net Sales	6,390	5,594
Operating Segments | Foreign | Latin America | Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	7,318	7,392
Operating Segments | Foreign | Latin America | SPG Segments
Segment Reporting Information [Line Items]
Net Sales	494	465
Operating Segments | Foreign | Asia Pacific
Segment Reporting Information [Line Items]
Net Sales	34,423	35,345
Operating Segments | Foreign | Asia Pacific | CPG Segment
Segment Reporting Information [Line Items]
Net Sales	17,605	17,639
Operating Segments | Foreign | Asia Pacific | PCG Segment
Segment Reporting Information [Line Items]
Net Sales	6,661	4,886
Operating Segments | Foreign | Asia Pacific | Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	4,482	7,674
Operating Segments | Foreign | Asia Pacific | SPG Segments
Segment Reporting Information [Line Items]
Net Sales	5,675	5,146
Operating Segments | Foreign | Other Foreign
Segment Reporting Information [Line Items]
Net Sales	20,108	15,375
Operating Segments | Foreign | Other Foreign | CPG Segment
Segment Reporting Information [Line Items]
Net Sales	45	2,875
Operating Segments | Foreign | Other Foreign | PCG Segment
Segment Reporting Information [Line Items]
Net Sales	20,063	12,500
Operating Segments | Foreign | Other Foreign | Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	0	0
Operating Segments | Foreign | Other Foreign | SPG Segments
Segment Reporting Information [Line Items]
Net Sales	0	0
Corporate/Other
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	(38,434)	$ (38,665)
Identifiable Assets	$ 219,903		$ 227,089