Leases - Lessee Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Sep. 30, 2021	Jun. 30, 2021
Leases [Abstract]
Right-of-use asset	$ 217,506	$ 200,990	$ 185,467
Lease liability, current	53,358	52,263	47,241
Lease liability, non-current	175,489	161,330	149,342
Total lease liability	$ 228,847	$ 213,593	$ 196,583