Property and Equipment Net - Components of Property and Equipment,Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Property Plant And Equipment [Line Items]
Finance leases	$ 3,425	$ 3,437
Subtotal	89,455	78,416
Less: accumulated depreciation	(51,748)	(46,911)
Total	37,707	31,505
Machinery and equipment
Property Plant And Equipment [Line Items]
Subtotal	$ 10,800	7,577
Machinery and equipment | Minimum
Property Plant And Equipment [Line Items]
Property and Equipment Useful Life	3 years
Machinery and equipment | Maximum
Property Plant And Equipment [Line Items]
Property and Equipment Useful Life	5 years
Computers, software and equipment
Property Plant And Equipment [Line Items]
Subtotal	$ 61,566	42,380
Computers, software and equipment | Minimum
Property Plant And Equipment [Line Items]
Property and Equipment Useful Life	3 years
Computers, software and equipment | Maximum
Property Plant And Equipment [Line Items]
Property and Equipment Useful Life	5 years
Leasehold improvements
Property Plant And Equipment [Line Items]
Subtotal	$ 10,110	8,493
Leasehold improvements | Minimum
Property Plant And Equipment [Line Items]
Property and Equipment Useful Life	2 years
Leasehold improvements | Maximum
Property Plant And Equipment [Line Items]
Property and Equipment Useful Life	15 years
Furniture and fixtures
Property Plant And Equipment [Line Items]
Subtotal	$ 3,554	4,150
Furniture and fixtures | Minimum
Property Plant And Equipment [Line Items]
Property and Equipment Useful Life	5 years
Furniture and fixtures | Maximum
Property Plant And Equipment [Line Items]
Property and Equipment Useful Life	7 years
Construction in progress
Property Plant And Equipment [Line Items]
Subtotal		$ 12,379