Stock-Based Employee Benefit Plans (Tables)

3 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Summary of Option Activity

The following table summarizes option activity during the quarter ended December 31, 2020:

	Shares	Weighted-average Exercise Price		Weighted-average Remaining Contractual Term	Aggregate Intrinsic Value
	(In thousands)			(In years)	(In thousands)
Outstanding at September 30, 2020	246	$	166.80
Granted	12	506.91
Outstanding at December 31, 2020	258	$	182.79	3.75	$	84,688
Exercisable at December 31, 2020	188	$	140.06	3.05	$	69,796
Vested or expected to vest at December 31, 2020	255	$	180.76	3.72	$	84,191

Summary of Restricted Stock Unit Activity

The following table summarizes restricted stock unit activity during the quarter ended December 31, 2020:

	Shares	Weighted-average Grant-date Fair Value
	(In thousands)
Outstanding at September 30, 2020	721	$	229.10
Granted	159	506.38
Released	(273)	187.57
Forfeited	(19)	241.04
Outstanding at December 31, 2020	588	$	323.15

Summary of Performance Share Unit Activity

The following table summarizes performance share unit activity during the quarter ended December 31, 2020:

	Shares	Weighted-average Grant-date Fair Value
	(In thousands)
Outstanding at September 30, 2020	127	$	248.97
Granted	33	506.91
Released	(68)	217.36
Outstanding at December 31, 2020	92	$	366.08

Summary of Market Share Unit Activity

The following table summarizes market share unit activity during the quarter ended December 31, 2020:

	Shares	Weighted-average Grant-date Fair Value
	(In thousands)
Outstanding at September 30, 2020	63	$	311.91
Granted	67	471.16
Released	(67)	257.15
Outstanding at December 31, 2020	63	$	541.41