Summary of Financial Information by Reportable Segment and Product Line (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Segment Reporting Information [Line Items]
Net sales	$ 598,204	$ 571,223	$ 528,660
Operating profit (loss)	83,922	30,660	51,113
Depreciation and amortization	16,313	19,600	21,611
Capital Expenditure	9,400	8,417	12,019
Assets	762,597	757,312
Assets of Continuing Operations	762,597	757,312
Service & Rental [Member]
Segment Reporting Information [Line Items]
Net sales	107,575	117,097	116,772
Products [Member]
Segment Reporting Information [Line Items]
Net sales	490,629	454,126	411,888
Industrial Tools & Services [Member] [Domain]
Segment Reporting Information [Line Items]
Net sales	555,178	527,342	493,125
Operating profit (loss)	135,883	78,735	81,683
Depreciation and amortization	12,329	14,498	15,856
Capital Expenditure	7,779	7,139	10,918
Assets	632,113	618,412
Industrial Tools & Services [Member] [Domain] | Service & Rental [Member]
Segment Reporting Information [Line Items]
Net sales	107,575	117,097	116,772
Industrial Tools & Services [Member] [Domain] | Products [Member]
Segment Reporting Information [Line Items]
Net sales	447,603	410,245	376,353
Other Operating Segment [Member]
Segment Reporting Information [Line Items]
Net sales	43,026	43,881	35,535
Operating profit (loss)	10,954	729	(10,420)
Depreciation and amortization	3,164	3,664	3,568
Capital Expenditure	599	710	768
Assets	28,127	46,428
General Corporate
Segment Reporting Information [Line Items]
Operating profit (loss)	(62,915)	(48,804)	(20,150)
Depreciation and amortization	820	1,438	2,187
Capital Expenditure	1,022	568	$ 333
Assets	$ 102,357	$ 92,472