Stockholders' Equity (Changes in Non-vested Stock Options) (Details) - Stock Options [Member] - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2026	Jun. 30, 2026
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Options, Beginning balance	233	473
Granted, Number of options	0	17
Vested, Number of options	(19)	(276)
Forfeited, Number of options	(2)	(2)
Number of Options, Ending balance	212	212
Weighted-Average Grant Date Fair Value Per Share, Beginning balance	$ 55.26	$ 43.4
Granted, Weighted-Average Grant Date Fair Value Per Share	0	173.79
Vested, Weighted-Average Grant Date Fair Value Per Share	39.51	41.1
Forfeited, Weighted-Average Grant Date Fair Value Per Share	65.28	59.81
Weighted-Average Grant Date Fair Value Per Share, Ending balance	$ 56.57	$ 56.57

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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