Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2025	Jan. 31, 2024	Nov. 30, 2023
Class of Stock [Line Items]
Stock repurchase program, additional shares authorized for repurchase (in shares)					12,000,000
Stock repurchased during the period (in shares)			1,100,000	1,400,000
Treasury stock value acquired	$ 6.5	$ 33.4	$ 81.4	$ 87.1
Shares with remaining authorization for repurchase under stock repurchase plan (in shares)	9,600,000		9,600,000
Dividends paid per share (in usd per share)	$ 0.270	$ 0.250	$ 0.540	$ 0.500
Treasury Stock
Class of Stock [Line Items]
Treasury stock value acquired	$ 6.5	$ 33.4	$ 81.4	$ 87.1