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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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