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Leases (Tables)
 12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Summary of Additional Details of the Leases
The following table provides additional details of the leases presented in the balance sheets (dollars in thousands):
As of Dec 31,
Facilities20212020
Right-of-use assets$12,752 $2,274 
Current portion of lease liabilities3,492 2,117 
Operating lease liability, net of current portion9,748 413 
Total$13,240 $2,530 
Weighted-average remaining life (years)3.401.50
Weighted-average discount rate6.9 %11.7 %
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,
202120202019
Operating lease expense$3,671 $2,608 $2,592 
Cash paid for operating lease$3,438 $3,065 $2,645 
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, 2021 (in thousands):
Ending December 31,
2022$4,292 
20234,440 
20244,589 
20251,321 
2026252 
Thereafter— 
Total undiscounted operating lease payments14,894 
Imputed interest expenses(1,654)
Total operating lease liabilities13,240 
Less: Current portion of operating lease liability(3,492)
Operating lease liability, net of current portion$9,748