Summary of Financial Information by Reportable Segment and Product Line (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2023
Segment Reporting Information [Line Items]
Net sales	$ 616,899	$ 589,510	$ 598,204
Cost of products sold	305,070	288,499	303,165
Gross profit	311,829	301,011	295,039
Selling, General and Administrative Expense	166,920	168,565	205,064
Amortization of Intangible Assets	5,576	3,312	5,112
Restructuring charges	5,862	7,400	7,096
Impairment and divestiture (benefit) charges	0	147	(6,155)
Operating profit (loss)	133,471	121,587	83,922
Depreciation and amortization	15,674	13,275	16,313
Capital Expenditure	19,340	11,411	9,400
Assets	827,867	777,328
Service & Rental [Member]
Segment Reporting Information [Line Items]
Net sales	116,824	115,506	107,575
Products [Member]
Segment Reporting Information [Line Items]
Net sales	500,075	474,004	490,629
Products [Member]
Segment Reporting Information [Line Items]
Cost of products sold	227,633	212,847	235,403
Service & Rental [Member]
Segment Reporting Information [Line Items]
Cost of products sold	77,437	75,652	67,762
Industrial Tools & Services [Member] [Domain]
Segment Reporting Information [Line Items]
Net sales	595,825	571,153	555,178
Cost of products sold	295,335	278,602	274,783
Gross profit	300,490	292,551	280,395
Selling, General and Administrative Expense	128,724	129,365	135,797
Amortization of Intangible Assets	5,404	3,280	3,297
Restructuring charges	2,493	6,801	5,418
Operating profit (loss)	$ 163,869	$ 153,105	$ 135,883
Operating profit (loss) % [Line Items]	27.50%	26.80%	24.50%
Capital Expenditure	$ 8,906	$ 6,079	$ 7,779
Assets	672,123	613,797
Industrial Tools & Services [Member] [Domain] | Service & Rental [Member]
Segment Reporting Information [Line Items]
Net sales	116,824	115,506	107,575
Industrial Tools & Services [Member] [Domain] | Products [Member]
Segment Reporting Information [Line Items]
Net sales	479,001	455,647	447,603
Other Operating Segment [Member]
Segment Reporting Information [Line Items]
Net sales	21,074	18,357	43,026
Cost of products sold	9,661	8,950	26,546
Gross profit	11,413	9,407	16,480
Selling, General and Administrative Expense	5,350	4,964	9,962
Amortization of Intangible Assets	0	0	1,719
Restructuring charges	0	47	0
Impairment and divestiture (benefit) charges	0	147	(6,155)
Operating profit (loss)	$ 6,063	$ 4,249	$ 10,954
Operating profit (loss) % [Line Items]	28.80%	23.10%	25.50%
Capital Expenditure	$ 434	$ 561	$ 599
Assets	25,294	26,533
General Corporate
Segment Reporting Information [Line Items]
Cost of products sold	74	947	1,836
Gross profit	(74)	(947)	(1,836)
Selling, General and Administrative Expense	32,846	34,236	59,305
Amortization of Intangible Assets	172	32	96
Restructuring charges	3,369	552	1,678
Operating profit (loss)	(36,461)	(35,767)	(62,915)
Capital Expenditure	10,000	4,771	$ 1,022
Assets	$ 130,450	$ 136,998