Shareholders' Equity - Schedule of Forward Sales Executed (Details) $ / shares in Units, $ in Thousands	12 Months Ended
Sep. 30, 2022 USD ($) $ / shares shares
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares available (in shares) \| shares	7,026,160
Net proceeds available \| $	$ 776,643
Forward price (USD per share) \| $ / shares	$ 110.54
Forward Sales Equity Agreement Maturing September 29, 2023
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares available (in shares) \| shares	4,552,157
Net proceeds available \| $	$ 492,015
Forward price (USD per share) \| $ / shares	$ 108.08
Forward Sales Equity Agreement Maturing December 29, 2023
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares available (in shares) \| shares	919,898
Net proceeds available \| $	$ 105,451
Forward price (USD per share) \| $ / shares	$ 114.63
Forward Sales Equity Agreement Maturing March 28, 2024
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares available (in shares) \| shares	1,554,105
Net proceeds available \| $	$ 179,177
Forward price (USD per share) \| $ / shares	$ 115.29

The per share price of the Company's stock at which the contract holder of the freestanding contract has the right to purchase or sell the Company's stock at a future date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 50
-Paragraph 5
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=126731327&loc=d3e90205-114008

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(1)
-URI https://asc.fasb.org/extlink&oid=109262807&loc=d3e22047-110879

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- Definition

Amount that would be paid upon settlement of forward contract indexed to equity.

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- Definition

Number of shares as a settlement alternative for each freestanding forward contract.

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