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, 2025	Jun. 30, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of options, Beginning balance	2,956	3,578
Granted, Number of options		41
Exercised, Number of options	(598)	(1,257)
Forfeited, Number of options	(2)	(6)
Number of options, Ending balance	2,356	2,356
Weighted Average Exercise Price Per Share, Beginning balance	$ 89.2	$ 86.03
Granted, Weighted Average Exercise Price Per Share		191.45
Exercised, Weighted Average Exercise Price Per Share	82.93	80.46
Forfeited, Weighted Average Exercise Price Per Share	92.88	102.2
Weighted Average Exercise Price Per Share, Ending balance	$ 90.78	$ 90.78