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Accrued Expenses and Other Current Liabilities (Tables)
6 Months Ended
Jun. 30, 2022
Accrued Liabilities, Current [Abstract]  
Schedule of accrued expenses and other current liabilities Accrued expenses consisted of the following (in thousands):
June 30,
2022
December 31,
2021
Accrued property and equipment purchases$23,970 $34,375 
Accrued research and development costs29,976 23,994 
Accrued professional fees18,172 9,239 
Accrued battery supplier costs— 10,000 
Other accrued expenses13,971 6,317 
Total accrued expenses$86,089 $83,925