Shareholders' Equity - Forward Sales Agreement (Details) $ / shares in Units, $ in Thousands	6 Months Ended
Mar. 31, 2022 USD ($) $ / shares shares
Forward Contract Indexed to Issuer's Equity [Line Items]
Net proceeds available	$ 451,300
Forward Sales Equity Agreement Maturing Quarter Ended September 29, 2023
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares available (in shares) \| shares	4,290,498
Net proceeds available	$ 451,292
Forward price (USD per share) \| $ / shares	$ 105.18

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 http://asc.fasb.org/extlink&oid=123477628&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 http://asc.fasb.org/extlink&oid=109262807&loc=d3e22047-110879

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

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

+ References

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- Definition

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

+ References

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- Details

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