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Accrued Expenses
6 Months Ended
Jun. 30, 2022
Payables and Accruals [Abstract]  
Accrued Expenses
6. Accrued Expenses
Accrued expenses as of June 30, 2022 and December 31, 2021 are comprised of the following (in thousands):
 
 
  
June 30,
2022
 
  
December 31,
2021
 
Payroll, benefits and related taxes, excluding severance benefits
   $ 9,794      $ 9,548  
Withholding tax attributable to intercompany interest income
     2,871        1,950  
Outside service fees
     1,395        1,088  
Merger-related costs
     682        7,035  
Others
     684        450  
    
 
 
    
 
 
 
Accrued expenses
   $ 15,426      $ 20,071