Stockholders' Equity (Changes in Non-vested Stock Options) (Details) - Stock Options [Member] shares in Thousands	3 Months Ended
	Dec. 31, 2023 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Options, Beginning balance | shares	1,393
Granted, Number of options | shares	6
Exercised, Number of options | shares | shares	(572)
Forfeited, Number of options | shares	(1)
Number of Options, Ending balance | shares	826
Weighted-Average Grant Date Fair Value Per Share, Beginning balance | $ / shares	$ 33.96
Granted, Weighted-Average Grant Date Fair Value Per Share | $ / shares	61.03
Exercised, Weighted-Average Grant Date Fair Value Per Share | $ / shares	32.37
Forfeited, Weighted-Average Grant Date Fair Value Per Share | $ / shares	34.42
Weighted-Average Grant Date Fair Value Per Share, Ending balance | $ / shares	$ 35.26