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Stockholders' Equity (Details) - USD ($)											12 Months Ended
	Nov. 12, 2021	Sep. 27, 2021	Aug. 20, 2021	Jun. 08, 2021	May 21, 2021	Mar. 11, 2021	Feb. 19, 2021	Dec. 09, 2020	Oct. 27, 2020	Sep. 29, 2020	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019	Sep. 22, 2021	Mar. 03, 2021	Dec. 06, 2018
Class of Stock [Line Items]
Shelf registration authorized amount																$ 400,000,000
Stock Repurchase Program
Shares acquired (in shares)											0	0
Dividends
Dividends declared (in dollars per share)				$ 0.10		$ 0.10		$ 0.10		$ 0.10	$ 0.40	$ 0.40	$ 0.40
Dividends paid (in dollars per share)					$ 0.10		$ 0.10		$ 0.10
Selling Stockholder
Class of Stock [Line Items]
Shelf registration authorized shares															1,381,567
Scenario, Forecast
Dividends
Dividends paid (in dollars per share)	$ 0.10
Subsequent Event
Stock Repurchase Program
Maximum amount authorized by the board of directors for the repurchase of shares of the company's common stock														$ 100,000,000
Dividends
Dividends declared (in dollars per share)		$ 0.10
Dividends paid (in dollars per share)			$ 0.10

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