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v3.25.1

Stockholders' Equity (Changes in Non-vested Stock Options) (Details) - Stock Options [Member] - $ / shares shares in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Number of Options, Beginning balance | 495 | 898
Granted, Number of options | 38 | 41
Vested, Number of options | (28) | (434)
Forfeited, Number of options | (4) | (4)
Number of Options, Ending balance | 501 | 501
Weighted-Average Grant Date Fair Value Per Share, Beginning balance | $ 40.62 | $ 37.3
Granted, Weighted-Average Grant Date Fair Value Per Share | 84.13 | 83.65
Vested, Weighted-Average Grant Date Fair Value Per Share | 50.2 | 34.62
Forfeited, Weighted-Average Grant Date Fair Value Per Share | 44.31 | 44.31
Weighted-Average Grant Date Fair Value Per Share, Ending balance | $ 43.35 | $ 43.35

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- Definition Line items represent financial concepts included in a table. 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