Stockholders' Equity (Summary of Activity for PSUs) (Details) - Performance Restricted Stock Units [Member] shares in Thousands	3 Months Ended
	Dec. 31, 2023 $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted, Number of units | shares	66
Number of units, Ending balance | shares	66
Granted, Weighted-Average Grant Date Fair Value | $ / shares	$ 146.47
Weighted-Average Grant Date Fair Value, Ending balance | $ / shares	$ 146.47