Segment Information Segment Profit (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021
Segment Profit
Segment profit	$ 48,644	$ 42,463	$ 99,753	$ 90,730
ID Solutions
Segment Profit
Segment profit	44,129	39,000	92,945	79,279
Workplace Safety
Segment Profit
Segment profit	$ 4,515	$ 3,463	$ 6,808	$ 11,451