v3.26.1
Fair Value Measurements (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Money market funds $ 16,284 $ 97,619
Corporate and government bonds 40,062 46,056
Notes receivable 52,146 47,706
Total assets at fair value on a recurring basis 108,492 191,381
Revolving credit facility and term loans 157,184 83,556
Total liabilities at fair value on a recurring basis 157,184 83,556
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Money market funds 16,284 97,619
Corporate and government bonds 40,062 46,056
Notes receivable 0 0
Total assets at fair value on a recurring basis 56,346 143,675
Revolving credit facility and term loans 0 0
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]    
Money market funds 0 0
Corporate and government bonds 0 0
Notes receivable 0 0
Total assets at fair value on a recurring basis 0 0
Revolving credit facility and term loans 157,184 83,556
Total liabilities at fair value on a recurring basis 157,184 83,556
Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]    
Money market funds 0 0
Corporate and government bonds 0 0
Notes receivable 52,146 47,706
Total assets at fair value on a recurring basis 52,146 47,706
Revolving credit facility and term loans 0 0
Total liabilities at fair value on a recurring basis $ 0 $ 0