Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

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Amount of stock repurchase plan authorized.

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Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended	9 Months Ended
	Jan. 26, 2022	Jan. 27, 2021	Nov. 30, 2019	Jun. 30, 2022	Jun. 30, 2022	Jan. 31, 2022	Sep. 30, 2021	Jun. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of additional shares available for future grants	800,000
Total unrecognized compensation cost related to non-vested stock-based compensation arrangements				$ 18,764	$ 18,764
Forfeiture rate, Board of Directors				0.00%	0.00%
Forfeiture rate, non-Board of Directors				7.30%	7.30%
Unrecognized compensation cost is expected to be recognized over a weighted-average period					2 years
2017 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of additional shares available for future grants		1,500,000
Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vested contractual term, in years					10 years
Vesting period, in years					4 years
Weighted-average exercise price				$ 101.54	$ 115.30
Stock Options [Member] \| Share-based Payment Arrangement, Tranche One [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting rate					25.00%
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average exercise price				$ 99.72
Shares issued				48,156,000	48,156,000
2019 Authorization [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock repurchase program authorized amount			$ 500,000	$ 26,742	$ 26,742
Repurchase period in years			3 years
Stock repurchase program, number of shares authorized to be repurchased				233,000	233,000			0
2022 Authorization [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock repurchase program authorized amount				$ 400,975	$ 400,975	$ 800,000
Stock repurchase program, number of shares authorized to be repurchased				3,441,000	3,441,000
2017 Authorization [Member] \| 2017 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grants				2,933,000	2,933,000		2,714,000