Quarterly report [Sections 13 or 15(d)]

Restricted Investments - Schedule of Amortized Cost and Fair Value (Details)

v3.25.1
Restricted Investments - Schedule of Amortized Cost and Fair Value (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]    
Due within one year $ 2,855  
Due after one year through three years 4,366  
Due after three years 13,094  
Amortized Cost 20,315 $ 17,986
Due within one year 2,848  
Due after one year through three years 4,342  
Due after three years 13,030  
Fair Value $ 20,220 $ 18,020