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v3.26.1

Stockholders' Equity (Changes in Non-vested Stock Options) (Details) - Stock Options [Member] - $ / shares shares in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2026 | Mar. 31, 2026
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Number of Options, Beginning balance | 247 | 473
Granted, Number of options | 17 | 17
Vested, Number of options | (31) | (257)
Forfeited, Number of options | 0 | 0
Number of Options, Ending balance | 233 | 233
Weighted-Average Grant Date Fair Value Per Share, Beginning balance | $ 48.33 | $ 43.4
Granted, Weighted-Average Grant Date Fair Value Per Share | 173.79 | 173.79
Vested, Weighted-Average Grant Date Fair Value Per Share | 64.6 | 41.21
Forfeited, Weighted-Average Grant Date Fair Value Per Share | 0 | 0
Weighted-Average Grant Date Fair Value Per Share, Ending balance | $ 55.26 | $ 55.26

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