Segment Information Segment Profit (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Segment Profit
Segment profit	$ 53,195	$ 40,780	$ 143,925	$ 134,490
ID Solutions
Segment Profit
Segment profit	47,539	36,401	126,818	119,499
Workplace Safety
Segment Profit
Segment profit	$ 5,656	$ 4,379	$ 17,107	$ 14,991