Stockholders' Equity (Summary of Activity for Stock Option Awards) (Details) - Stock Options [Member] - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2024	Jun. 30, 2024
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of options, Beginning balance	4,213	4,842
Granted, Number of options		87
Exercised, Number of options	(603)	(1,313)
Forfeited, Number of options	(6)	(12)
Number of options, Ending balance	3,604	3,604
Weighted Average Exercise Price Per Share, Beginning balance	$ 83.54	$ 80.48
Granted, Weighted Average Exercise Price Per Share		137.36
Exercised, Weighted Average Exercise Price Per Share	70.05	69.58
Forfeited, Weighted Average Exercise Price Per Share	101.4	96.82
Weighted Average Exercise Price Per Share, Ending balance	$ 85.77	$ 85.77

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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