Share-Based Employee Benefit Plans (Tables)

3 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Summary of Restricted Stock Unit Activity

The following table summarizes restricted stock unit activity during the quarter ended December 31, 2023:

	Shares	Weighted-average Grant-date Fair Value
	(In thousands)
Outstanding at September 30, 2023	376	$	508.23
Granted	91	1,129.77
Released	(132)	470.22
Forfeited	(11)	504.43
Outstanding at December 31, 2023	324	$	698.48

Summary of Performance Share Unit Activity

The following table summarizes performance share unit activity during the quarter ended December 31, 2023:

	Shares	Weighted-average Grant-date Fair Value
	(In thousands)
Outstanding at September 30, 2023	115	$	519.54
Granted	18	1,134.39
Released	(58)	502.66
Forfeited	(8)	529.92
Outstanding at December 31, 2023	67	$	695.06

Summary of Market Share Unit Activity

The following table summarizes market share unit activity during the quarter ended December 31, 2023:

	Shares	Weighted-average Grant-date Fair Value
	(In thousands)
Outstanding at September 30, 2023	87	$	844.24
Granted	64	1,014.75
Released	(84)	737.77
Forfeited	(5)	845.67
Outstanding at December 31, 2023	62	$	1,161.62

Summary of Option Activity

The following table summarizes option activity during the quarter ended December 31, 2023:

	Shares	Weighted-average Exercise Price		Weighted-average Remaining Contractual Term	Aggregate Intrinsic Value
	(In thousands)			(In years)	(In thousands)
Outstanding at September 30, 2023	227	$	387.95
Granted	6	1,133.87
Exercised	(31)	146.68
Outstanding at December 31, 2023	202	$	444.55	3.83	$	145,366
Exercisable at December 31, 2023	132	$	271.79	2.56	$	117,720
Vested or expected to vest at December 31, 2023	196	$	432.79	3.75	$	143,106