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Other Current Assets and Other Long-Term Assets (Tables)
6 Months Ended
Jun. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Other Current Assets
Other current assets consisted of the following (in thousands):
June 30,
2021
December 31,
2020
Collaboration receivable$65,000 $— 
Prepaid expenses9,802 8,158 
Deposits and other receivables4,659 3,075 
Interest receivable2,123 2,304 
$81,584 $13,537