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Accrued Expenses and Other Current Liabilities
9 Months Ended
Sep. 30, 2022
Accrued Liabilities, Current [Abstract]  
Accrued Expenses and Other Current Liabilities Accrued Expenses and Other Current Liabilities
Accrued expenses consisted of the following (in thousands):
September 30,
2022
December 31,
2021
Accrued property and equipment purchases$26,331 $34,375 
Accrued research and development costs23,398 23,994 
Accrued professional fees14,174 9,239 
Accrued battery supplier costs— 10,000 
Other accrued expenses10,215 6,317 
Total accrued expenses$74,118 $83,925