Financing Agreement - Schedule of Outstanding Balance of Credit Facility (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Mar. 31, 2025	Mar. 31, 2025	Mar. 31, 2024	Sep. 30, 2024
Line of Credit Facility [Line Items]
Less: Current portion of credit facility	$ (65,000)	$ (65,000)		$ 0
Less: Payments		(151,625)	$ 0
Secured Debt \| Financing Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Initial Term Loan	363,063	363,063
Less: Unamortized debt discount and issuance costs	(14,135)	(14,135)		(15,817)
Less: Current portion of credit facility	(65,000)	(65,000)		0
Less: Payments	(151,625)			0
Credit facility, net of current portion	208,927	208,927		393,183
Secured Debt \| Financing Agreement, Initial Term Loan \| Line of Credit
Line of Credit Facility [Line Items]
Initial Term Loan	400,000	400,000		400,000
Secured Debt \| Financing Agreement, Initial Term Loan Interest \| Line of Credit
Line of Credit Facility [Line Items]
Initial Term Loan	$ 39,687	$ 39,687		$ 9,000

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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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.

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The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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