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v3.23.3

Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 01, 2022 | Sep. 30, 2020 | May 20, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common Stock, Shares Authorized | 100,000,000 | 100,000,000 |  |  |  |
Common Stock, Capital Shares Reserved for Future Issuance | 619,735 |  |  |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased | 1,500,000 |  |  |  |  | 1,000,000.0
Treasury Stock, Shares, Acquired | 224,013 | 511,600 |  |  |  |
Treasury Stock Acquired, Average Cost Per Share | $ 31.06 | $ 32.02 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | 105,755 | 157,167 |  |  |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation | 32,158 | 45,198 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | (266) |  |  |  |  |
Options exercised, shares | 3,000 | 9,000 |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  | $ 40,000 |  |
Common Stock, Shares, Issued | 22,049,529 | 22,049,529 | 22,049,529 |  | 22,049,529 |
Restricted Stock [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | (266) | 0 | (13,996) |  |  |
Share-based Payment Arrangement, Expense | $ 23 | $ 137 | $ 145 |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 0 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 13,639 | 16,757 | 38,936 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted | 0 | 0 | 0 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | (13,373) | (3,118) | (8,183) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 0 | 13,639 | 16,757 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value | $ 461 | $ 150 | $ 308 |  |  |
Phantom Share Units (PSUs) [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Payment Arrangement, Expense | $ 386 | $ 386 | 376 |  |  |
Performance Based Phantom Shares [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | (13,583) |  |  |  |  |
Shares, Issued | 129,189 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted | 105,755 |  |  |  |  |
Shares, Outstanding | 325,813 | 315,961,000 |  |  |  |
Phantom Share Units, Employee PSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Payment Arrangement, Expense | $ 3,963 | $ 3,251 | $ 2,986 |  |  |
Employee Stock Option |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | 3,000 | 9,000 |  |  |  |
Equity Incentive Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common Stock, Shares Authorized | 3,000,000.0 |  |  |  |  |

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