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Leases (Tables)
 12 Months Ended
Dec. 31, 2022
Leases [Abstract]  
Summary of Additional Details of the Leases
The following table provides additional details of our facility leases presented in our balance sheets (dollars in thousands):
December 31,
Facilities20222021
Right-of-use assets$9,295 $12,752 
Current portion of lease liabilities3,894 3,492 
Operating lease liability, net of current portion5,855 9,748 
Total$9,749 $13,240 
Weighted-average remaining life (years)2.43.4
Weighted-average discount rate6.8 %6.9 %
Summary of Lease Costs
The lease costs, which are included in operating expenses in our statements of operations, were as follows (in thousands):
Year Ended December 31,
202220212020
Operating lease expense$4,257 $3,671 $2,608 
Cash paid for operating lease$4,292 $3,438 $3,065 
Summary of Undiscounted Cash Payment Obligations for Operating Lease Liabilities
The following table summarizes our undiscounted cash payment obligations for our operating lease liabilities as of December 31, 2022 (in thousands):
Ending December 31,
2023$4,440 
20244,589 
20251,321 
2026252 
Thereafter— 
Total undiscounted operating lease payments10,602 
Imputed interest expenses(853)
Total operating lease liabilities9,749 
Less: Current portion of operating lease liability(3,894)
Operating lease liability, net of current portion$5,855