Segment Information - Schedule of Segment Reporting Information By Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 1,144,698	$ 1,081,299	$ 1,160,645
Depreciation and amortization	25,483	23,437	23,799
Segment profit	191,992	171,658	187,978
Assets	1,377,756	1,142,466	1,157,308
Expenditures for property, plant & equipment	27,189	27,277	32,825
Americas [Member]
Segment Reporting Information [Line Items]
Net sales	637,752	624,870	675,944
Europe [Member]
Segment Reporting Information [Line Items]
Net sales	355,210	317,897	344,332
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net sales	151,736	138,532	140,369
Identification Solutions
Segment Reporting Information [Line Items]
Net sales	841,508	784,707	863,100
Depreciation and amortization	22,248	20,745	21,387
Segment profit	169,238	150,639	164,953
Assets	1,079,331	737,589	740,437
Expenditures for property, plant & equipment	20,262	17,637	17,849
Identification Solutions | Americas [Member]
Segment Reporting Information [Line Items]
Net sales	551,938	532,357	577,156
Identification Solutions | Europe [Member]
Segment Reporting Information [Line Items]
Net sales	191,854	165,490	193,852
Identification Solutions | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net sales	97,716	86,860	92,092
Workplace Safety
Segment Reporting Information [Line Items]
Net sales	303,190	296,592	297,545
Depreciation and amortization	3,235	2,692	2,412
Segment profit	22,754	21,019	23,025
Assets	151,090	187,234	137,799
Expenditures for property, plant & equipment	6,927	9,640	14,976
Workplace Safety | Americas [Member]
Segment Reporting Information [Line Items]
Net sales	85,814	92,513	98,788
Workplace Safety | Europe [Member]
Segment Reporting Information [Line Items]
Net sales	163,356	152,407	150,480
Workplace Safety | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net sales	54,020	51,672	48,277
Corporate [Member]
Segment Reporting Information [Line Items]
Assets	$ 147,335	$ 217,643	$ 279,072