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Property and Equipment (Tables)
3 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Summary of Property and Equipment
The following table summarizes the Company’s major classes of property and equipment:
December 31, 2022September 30, 2022
(in thousands)
Computers, software, office equipment and furniture$2,182 $2,182 
Land2,996 2,996 
Research equipment43,739 38,283 
Leasehold improvements42,017 42,017 
Construction in progress90,215 56,373 
181,149 141,851 
Less: Accumulated depreciation and amortization(33,835)(31,554)
Property and equipment, net$147,314 $110,297