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Stock-Based Compensation (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Jan. 29, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Proceeds from Stock Options Exercised | $ 225 | $ 872 |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation | 87,792 | 71,951 |
Tax withholding for share-based compensation | $ 2,100 | $ 3,000 |
Total intrinsic value of all options exercised | 400 | 1,700 |
Proceeds from employee stock purchase plan transactions | 531 | 594 |
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Proceeds from Stock Options Exercised | 200 | $ 900 |
Total unrecognized compensation cost nonvested awards | $ 4,100 |  |
Weighted average period, unrecognized compensation cost, nonvested awards | 1 year 6 months |  |
Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total unrecognized compensation cost nonvested restricted stock units | $ 24,200 |  |
Weighted average period, unrecognized compensation cost, nonvested awards | 2 years 7 months 6 days |  |
Performance Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total unrecognized compensation cost nonvested restricted stock units | $ 1,400 |  |
Weighted average period, unrecognized compensation cost, nonvested awards | 9 months 18 days |  |
The Purchase Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares authorized |  |  | 3,425,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Continuous Days of Service | 90 days |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Hours Per Week Employed | 20 hours |  |
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent | 85.00% |  |
Common shares issued to employees | 23,665 | 19,683 |
Shares available for future issuance | 446,562 |  |
Proceeds from employee stock purchase plan transactions | $ 500 | $ 600 |
The 2021 Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares available for future grants | 1,881,637 |  |

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