v3.25.2
Fair Value Measurements - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Sep. 30, 2024
Fair Value Disclosures [Abstract]    
Debt, carrying value $ 5,154,001 $ 4,624,791
Debt, fair value $ 5,145,736 $ 4,591,161