Summary of Financial Information by Reportable Segment and Product Line (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021	Aug. 31, 2021
Segment Reporting Information [Line Items]
Net Sales	$ 151,894	$ 143,149	$ 419,395	$ 383,233
Operating Profit (Loss)	6,643	22,747	17,534	37,524
Assets	797,299		797,299		$ 820,247
Industrial Tools & Services [Member] [Domain]
Segment Reporting Information [Line Items]
Net Sales	140,395	133,400	387,647	358,314
Operating Profit (Loss)	19,226	23,812	49,872	54,826
Assets	641,199		641,199		641,256
Products [Member]
Segment Reporting Information [Line Items]
Net Sales	109,915	102,224	299,761	271,992
Service & Rental [Member]
Segment Reporting Information [Line Items]
Net Sales	30,480	31,176	87,886	86,322
Other Operating Segment [Member]
Segment Reporting Information [Line Items]
Net Sales	11,499	9,749	31,748	24,919
Operating Profit (Loss)	1,096	(65)	173	(3,747)
Assets	49,626		49,626		52,745
General Corporate
Segment Reporting Information [Line Items]
Operating Profit (Loss)	(13,679)	$ (1,000)	(32,511)	$ (13,555)
Assets	$ 106,474		$ 106,474		$ 126,246