Subsequent Events	12 Months Ended
Sep. 30, 2024
Subsequent Events [Abstract]
Subsequent Events	18. Subsequent Events On October 1, 2024, we entered into an amendment to our credit agreement. Prior to the amendment, if our outstanding 2025 Senior Notes had not been refinanced to mature on or after April 3, 2028 or redeemed by November 16, 2024, all amounts outstanding under the credit facility would become due and payable on November 16, 2024. After the amendment, the amount outstanding under the credit facility will not become due and payable on November 16, 2024 if on that date our total cash and cash equivalent investments, readily-marketable securities, and available revolving commitments under the credit agreement are greater than or equal to $600 million.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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