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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Class of Stock [Line Items] |  |
Equity Securities Registered, Value | $ 750.0 |
At-the-market Equity Offering Program, Common Stock Available for Issuance | 300.0 |
Common Stock, Shares Authorized | 750.0 |
Stock-based compensation expense | $ 2.6 | $ 0.9
October Two Thousand Twenty Four Grant | Performance Shares |  |
Class of Stock [Line Items] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 99,097 |
Stock-based compensation expense | $ 0.3 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 35.20 |
October Two Thousand Twenty Four Grant | Performance Shares | Minimum |  |
Class of Stock [Line Items] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage | 0.00% |
October Two Thousand Twenty Four Grant | Performance Shares | Maximum |  |
Class of Stock [Line Items] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage | 200.00% |
First Quarter Two Thousand Twenty Five time-based RSU Grants | Time-Based RSU |  |
Class of Stock [Line Items] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 306,300 |
Stock-based compensation expense | $ 2.3 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 29.00 |
First Quarter Two Thousand Twenty Five time-based RSU Grants | Time-Based RSU | Retirement Eligible |  |
Class of Stock [Line Items] |  |
Stock-based compensation expense | $ 1.1 |

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