Business Segments and Foreign Operations - Schedule of Net Sales by Product Group (Details) - USD ($) $ in Thousands	12 Months Ended
Aug. 31, 2026	Aug. 31, 2025	Aug. 31, 2024
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Net sales	$ 687,993	$ 619,985	$ 590,557
Maintenance products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Net sales	665,942	590,966	558,036
Homecare and cleaning products
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Net sales	$ 22,051	$ 29,019	$ 32,521

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details