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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Sep. 30, 2023 | Dec. 01, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Common Stock, Shares Authorized |  | 100,000,000 |  | 100,000,000 |  | 100,000,000 |
Treasury Stock Acquired, Average Cost Per Share |  | $ 132.92 | $ 40.00 | $ 132.92 | $ 31.06 |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  |  |  | 33,940 | 31,095 |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  | $ 40,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant |  | 568,992 |  | 568,992 |  |  |
Treasury Stock Acquired, Average Cost Per Share |  | $ 132.92 | $ 40.00 | $ 132.92 | $ 31.06 |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  |  |  | 33,940 | 31,095 |  |
Subsequent Event |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Treasury Stock, Shares, Acquired | 119,041 |  |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share | $ 139.84 |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount | $ 200,000 |  |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share | $ 139.84 |  |  |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based Payment Arrangement, Expense |  | $ 0 | $ 0 | $ 0 | $ 25 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period |  |  |  |  | 266 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period |  |  |  |  | 266 |  |
Phantom Share Units (PSUs) [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based Payment Arrangement, Expense |  | 134 | 99 | 3,969 | $ 289 |  |
us-gaap_PhantomShareUnitsPSUsMember_Employees |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based Payment Arrangement, Expense |  | $ 1,274 | $ 1,200 | $ 3,969 | $ 2,941 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  | 86,512 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period |  |  |  | 5,608 |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period |  |  |  | (82,180) |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number |  | 324,537 |  | 324,537 |  |  |
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  |  | 82,180 | 103,053 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period |  |  |  | 5,608 |  |  |
Share-Based Payment Arrangement, Option |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  |  | 1,000 | 2,000 |  |
Equity Incentive Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized |  | 3,000,000.0 |  | 3,000,000.0 |  |  |
Repurchase Agreements [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Treasury Stock, Shares, Acquired |  | 157,505 | 234 | 157,505 | 224,013 |  |

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