Cash, Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Cash, cash equivalents and marketable securities [Line Items]
Amortized Cost	$ 134,136	$ 150,667
Fair Value	134,136	150,667
Amortized Cost	40,603	36,044
Fair Value	54,625	45,289
Cash
Cash, cash equivalents and marketable securities [Line Items]
Amortized Cost	134,130	142,768
Fair Value	134,130	142,768
Money market funds
Cash, cash equivalents and marketable securities [Line Items]
Amortized Cost	6	731
Fair Value	6	731
Bank time deposits
Cash, cash equivalents and marketable securities [Line Items]
Amortized Cost	0	7,168
Fair Value	$ 0	$ 7,168

Cash, cash equivalents and marketable securities

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- Definition

Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

+ References

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Cost of investment in debt investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

+ References

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

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