Share-Based Compensation (Summary of Stock Option Activity) (Details) shares in Thousands	12 Months Ended
	Sep. 30, 2022 $ / shares shares
Shares
Outstanding, beginning (shares) | shares	801
Exercised (shares) | shares	(237)
Outstanding, ending (shares) | shares	564
Exercisable (shares) | shares	564
Weighted Average Exercise Price
Outstanding, beginning (in dollars per share) | $ / shares	$ 99.79
Exercised (in dollars per share) | $ / shares	84.75
Outstanding, ending (in dollars per share) | $ / shares	106.14
Exercisable (in dollars per share) | $ / shares	$ 106.14