v3.25.2
Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - Estimate of Fair Value Measurement - USD ($)
$ in Thousands
Jun. 30, 2025
Sep. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis $ 151,195 $ 137,239
Total liabilities at fair value on a recurring basis 70,001 121,319
Money market funds    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 51,964 94,772
Corporate and government bonds    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 52,713 0
Notes receivable    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 46,518 42,467
Revolving credit facility and term loans    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total liabilities at fair value on a recurring basis 70,001 121,319
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 104,677 94,772
Total liabilities at fair value on a recurring basis 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 51,964 94,772
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate and government bonds    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 52,713 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Notes receivable    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Revolving credit facility and term loans    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total liabilities at fair value on a recurring basis 0 0
Significant Other Observable Inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 0 0
Total liabilities at fair value on a recurring basis 70,001 121,319
Significant Other Observable Inputs (Level 2) | Money market funds    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 0 0
Significant Other Observable Inputs (Level 2) | Corporate and government bonds    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 0 0
Significant Other Observable Inputs (Level 2) | Notes receivable    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 0 0
Significant Other Observable Inputs (Level 2) | Revolving credit facility and term loans    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total liabilities at fair value on a recurring basis 70,001 121,319
Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 46,518 42,467
Total liabilities at fair value on a recurring basis 0 0
Significant Unobservable Inputs (Level 3) | Money market funds    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 0 0
Significant Unobservable Inputs (Level 3) | Corporate and government bonds    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 0 0
Significant Unobservable Inputs (Level 3) | Notes receivable    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total assets at fair value on a recurring basis 46,518 42,467
Significant Unobservable Inputs (Level 3) | Revolving credit facility and term loans    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Total liabilities at fair value on a recurring basis $ 0 $ 0