Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Income Tax Disclosure [Abstract]
Effective income tax rate (as a percent)	20.50%	20.40%	18.70%
Federal statutory tax rate (as a percent)	21.00%	21.00%	21.00%
Discrete tax adjustments	$ 800			$ 17,000
Deduction in FDII	47,700	$ 42,600	$ 37,200
Discrete tax adjustments, prior year		1,500	8,200
Tax benefits	14,800	21,000	14,400
Increase in valuation allowance	7,000
Tax credit carryforward	48,600	41,600
Valuation allowance	47,377	40,346
Unrecognized tax benefits that would impact effective tax rate	36,100	45,300
Interest and penalties related to income tax	13,800	$ 11,700	$ 8,900
Undistributed earnings	$ 500,800