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Accrued expenses and other current liabilities
9 Months Ended
Sep. 30, 2021
Accrued expenses and other current liabilities  
Accrued expenses and other current liabilities

7

Accrued expenses and other current liabilities

Accrued expenses and other current liabilities include the following items:

September 30, 

December 31, 

    

2021

    

2020

(in thousands)

Accruals for services provided by vendors-not yet billed

$

19,846

$

8,269

Personnel related accruals and liabilities

10,900

7,687

Contract liability

2,082

Total

$

30,746

$

18,038