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v3.23.2

Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 01, 2022 | Sep. 30, 2022 | May 02, 2019 | Sep. 30, 2017
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 | $ 40.00 | $ 29.94 | $ 31.06 | $ 34.01 |  |  |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  |  | 31,095 | 45,198 |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 40,000 |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant | 618,222 |  | 618,222 |  |  |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased |  |  |  |  |  |  | 1,000,000 | 1,500,000
Treasury Stock Acquired, Average Cost Per Share | $ 40.00 | $ 29.94 | $ 31.06 | $ 34.01 |  |  |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  |  | 31,095 | 45,198 |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expense | $ 0 | $ 36 | $ 25 | $ 107 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  | 0 |  |  |  |  |
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, Vested in Period |  |  | 13,373 |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 0 |  | 0 |  |  |  |  |
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 | $ 99 | 96 | $ 289 | $ 289 |  |  |  |
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  |  | 83,540 |  |  |  |
us-gaap_PhantomShareUnitsPSUsMember_Employees |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expense | $ 1,200 | $ 866 | $ 2,941 | $ 2,498 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  | 130,739 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period |  |  | 12,987 |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period |  |  | 103,053 |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 330,660 |  | 330,660 |  |  |  |  |
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  | 103,053 | 73,627 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period |  |  | 12,987 |  |  |  |  |
Share-Based Payment Arrangement, Option |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  | 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 | 234 | 185,887 | 224,013 | 244,889 |  |  |  |

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