Revenue Recognition - Summary of Revenue from the Sale of Products and Services Under Contracts with Customers Excludes All Revenue Earned from Rental Contracts by Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation Of Revenue [Line Items]
Total revenue	$ 13,463	$ 17,679	$ 48,060	$ 66,005
Operating Segments
Disaggregation Of Revenue [Line Items]
Total revenue	13,463	17,679	48,060	66,005
Operating Segments | Asia
Disaggregation Of Revenue [Line Items]
Total revenue	1,223	4,088	7,580	16,554
Operating Segments | Canada
Disaggregation Of Revenue [Line Items]
Total revenue	577	279	1,634	1,167
Operating Segments | Europe
Disaggregation Of Revenue [Line Items]
Total revenue	1,625	3,223	14,368	6,102
Operating Segments | United States
Disaggregation Of Revenue [Line Items]
Total revenue	9,297	9,401	22,621	40,820
Operating Segments | Other
Disaggregation Of Revenue [Line Items]
Total revenue	$ 741	$ 688	$ 1,857	$ 1,362