Property, Plant and Equipment (Tables)

12 Months Ended

Aug. 31, 2019

Property Plant And Equipment [Abstract]

Schedule of Property, Plant and Equipment

	August 31,
($ in thousands)	2019			2018
Operating property, plant, and equipment:
Land	$	2,775		$	2,799
Buildings		41,284			37,220
Machinery and equipment		77,715			75,635
Furniture and fixtures		7,706			6,632
Computer hardware and software		18,956			16,095
Construction in progress		10,953			6,733
Total operating property, plant, and equipment		159,389			145,114
Accumulated depreciation		(102,437	)		(98,191	)
Total operating property, plant, and equipment, net		56,952			46,923
Property held for lease:
Machines		8,861			8,214
Barriers		20,445			18,122
Total property held for lease		29,306			26,336
Accumulated depreciation		(17,290	)		(16,011	)
Total property held for lease, net		12,016			10,325
Property, plant, and equipment, net	$	68,968		$	57,248