Segment Reporting (Net Sales by Product Within Engine Products Segment and Industrial Products Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Segment Reporting Information
Net sales	$ 3,306.6	$ 2,853.9	$ 2,581.8
Engine Products Segment | Operating Segments
Segment Reporting Information
Net sales	2,302.7	1,957.7	1,727.5
Engine Products Segment | Off-Road | Operating Segments
Segment Reporting Information
Net sales	405.8	328.1	256.5
Engine Products Segment | On-Road | Operating Segments
Segment Reporting Information
Net sales	136.1	138.8	124.4
Engine Products Segment | Aftermarket | Operating Segments
Segment Reporting Information
Net sales	1,640.3	1,394.6	1,228.9
Engine Products Segment | Aerospace and Defense | Operating Segments
Segment Reporting Information
Net sales	120.5	96.2	117.7
Industrial Products Segment | Operating Segments
Segment Reporting Information
Net sales	1,003.9	896.2	854.3
Industrial Products Segment | Industrial Filtration Solutions | Operating Segments
Segment Reporting Information
Net sales	711.2	621.9	581.2
Industrial Products Segment | Gas Turbine Systems | Operating Segments
Segment Reporting Information
Net sales	110.2	96.2	101.6
Industrial Products Segment | Special Applications | Operating Segments
Segment Reporting Information
Net sales	$ 182.5	$ 178.1	$ 171.5