Revenue - Schedule of Revenues by Segment and Major Source (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2026	May 31, 2025	May 31, 2026	May 31, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	$ 195,119	$ 156,915	$ 511,213	$ 456,514
Total maintenance products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	189,744	150,402	495,473	435,226
WD-40 Multi-Use Product
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	152,523	120,687	397,686	352,926
WD-40 Specialist
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	28,018	22,028	72,899	59,762
Other maintenance products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	9,203	7,687	24,888	22,538
HCCP
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	5,375	6,513	15,740	21,288
Americas
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	101,216	78,162	244,903	213,127
Americas \| Total maintenance products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	98,342	74,997	235,987	202,775
Americas \| WD-40 Multi-Use Product
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	81,914	61,225	192,539	165,184
Americas \| WD-40 Specialist
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	11,471	9,400	29,908	25,353
Americas \| Other maintenance products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	4,957	4,372	13,540	12,238
Americas \| HCCP
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	2,874	3,165	8,916	10,352
EIMEA
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	66,572	56,705	190,116	173,763
EIMEA \| Total maintenance products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	66,572	55,600	190,116	169,561
EIMEA \| WD-40 Multi-Use Product
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	50,006	42,804	147,314	134,076
EIMEA \| WD-40 Specialist
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	12,630	9,671	32,137	25,912
EIMEA \| Other maintenance products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	3,936	3,125	10,665	9,573
EIMEA \| HCCP
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	0	1,105	0	4,202
Asia-Pacific
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	27,331	22,048	76,194	69,624
Asia-Pacific \| Total maintenance products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	24,830	19,805	69,370	62,890
Asia-Pacific \| WD-40 Multi-Use Product
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	20,603	16,658	57,833	53,666
Asia-Pacific \| WD-40 Specialist
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	3,917	2,957	10,854	8,497
Asia-Pacific \| Other maintenance products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	310	190	683	727
Asia-Pacific \| HCCP
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net sales	$ 2,501	$ 2,243	$ 6,824	$ 6,734