Commitments and Contingencies (Tables)

12 Months Ended

Sep. 30, 2021

Commitments And Contingencies Disclosure [Abstract]

Future Minimum Unconditional Purchase Obligations

Future minimum unconditional purchase obligations are as follows:

Year Ending September 30,
2022	$	404,051
2023		36,292
2024		7,048
2025		1,333
2026		2,173
Thereafter		899
Total	$	451,796