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Accounts Payable and Accrued Expenses
12 Months Ended
Dec. 31, 2022
Payables and Accruals [Abstract]  
Accounts Payable and Accrued Expenses Accounts Payable and Accrued Expenses
Accounts payable and accrued liabilities as of December 31, 2022 and 2021 consisted of the following (in thousands):
December 31, 2022December 31, 2021
Accounts payable$4,341 $4,298 
Accrued employee expenses24,074 10,088 
Other accrued liabilities5,220 8,769 
$33,635 $23,155 
As of December 31, 2022 and 2021, other accrued liabilities included short-term insurance premium financing of $1.5 million and $4.2 million, respectively. Unpaid employee termination costs of $3.6 million as of December 31, 2022 are included in accrued employee expenses. See Note 4 for additional information.