Segment Information - Schedule of Segment Reporting Information By Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2021	Oct. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 321,475	$ 277,227
Segment Profit	51,109	48,267
ID Solutions
Segment Reporting Information [Line Items]
Net sales	248,617	198,192
Segment Profit	48,816	40,279
Workplace Safety
Segment Reporting Information [Line Items]
Net sales	72,858	79,035
Segment Profit	2,293	7,988
Americas
Segment Reporting Information [Line Items]
Net sales	186,052	157,298
Americas | ID Solutions
Segment Reporting Information [Line Items]
Net sales	164,910	133,267
Americas | Workplace Safety
Segment Reporting Information [Line Items]
Net sales	21,142	24,031
Europe
Segment Reporting Information [Line Items]
Net sales	94,911	83,848
Europe | ID Solutions
Segment Reporting Information [Line Items]
Net sales	56,889	42,582
Europe | Workplace Safety
Segment Reporting Information [Line Items]
Net sales	38,022	41,266
Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	40,512	36,081
Asia-Pacific | ID Solutions
Segment Reporting Information [Line Items]
Net sales	26,818	22,343
Asia-Pacific | Workplace Safety
Segment Reporting Information [Line Items]
Net sales	$ 13,694	$ 13,738