Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Aug. 31, 2025	Aug. 31, 2024
Property, Plant and Equipment [Line Items]
Total operating property, plant and equipment	$ 267,051	$ 232,415
Accumulated depreciation	(142,538)	(139,892)
Total operating property, plant, and equipment, net	124,513	92,523
Machines	15,787	15,914
Barriers	32,222	32,286
Total property held for lease	48,009	48,200
Accumulated depreciation	(30,215)	(27,908)
Total property held for lease, net	17,794	20,292
Property, plant, and equipment, net	142,307	112,815
Land [Member]
Property, Plant and Equipment [Line Items]
Total operating property, plant and equipment	7,385	7,291
Building [Member]
Property, Plant and Equipment [Line Items]
Total operating property, plant and equipment	61,139	58,145
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Total operating property, plant and equipment	115,112	105,061
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total operating property, plant and equipment	9,741	9,157
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Total operating property, plant and equipment	27,139	27,907
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total operating property, plant and equipment	$ 46,535	$ 24,854