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Fair Value Measurements (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, Fair Value Disclosure | $ 988 |  | $ 986
Debt Securities, Trading | 3,397 |  | 3,364
Financial and Nonfinancial Liabilities, Fair Value Disclosure | (858) |  | (852)
Business Combination, Contingent Consideration, Liability, Noncurrent | (3,807) |  | (3,468)
Fair Value, Net Asset (Liability) | 49,290 |  | 31,669
Equity Securities, FV-NI, Current | 49,570 |  | 31,639
Equity Securities, FV-NI, Unrealized Gain (Loss) | 2,238 | $ 0 |
Debt Securities, Trading, Unrealized Gain (Loss) | 33 | 119 |
Equity Securities, FV-NI | 49,570 |  | 31,639
Payments to Acquire Investments | 44,900 | $ 130 |
Commitments |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Noncurrent | (3,807) |  | (3,468)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings | $ 339 |  |
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Contingent consideration |  |
Equity Securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) |  |
Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, Fair Value Disclosure | $ 988 |  | 986
Debt Securities, Trading | 3,397 |  | 3,364
Financial and Nonfinancial Liabilities, Fair Value Disclosure | (858) |  | (852)
Fair Value, Net Asset (Liability) | 53,097 |  | 35,137
Equity Securities, FV-NI, Current | 49,570 |  | 31,639
Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Noncurrent | (3,807) |  | (3,468)
Fair Value, Net Asset (Liability) | $ (3,807) |  | (3,468)
Equity Securities, FV-NI |  |  | $ 0

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