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Leases | 12 Months Ended
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Dec. 31, 2021
Leases [Abstract] |
Leases | Leases The Company has non-cancelable operating leases for manufacturing, laboratory, office and warehouse space in Maryland and a non-cancelable operating lease for laboratory and office space in California. A portion of the space under one of these leases is subleased to a third party. All of these leases include one or more options to renew, with those renewal periods ranging from five to fourteen years. The table below presents supplemental balance sheet information related to operating leases:
| December 31,
| 2021 |  | 2020
Weighted-average remaining lease term (in years) | 5.1 |  | 5.9
Weighted-average discount rate | 9.7 | % |  | 9.7 | %
During the years ended December 31, 2021 and 2020, t he Company made cash payments for operating leases of $6.7 million and $5.9 million, respectively. As of December 31, 2021 and 2020, the Company’s ROU assets were valued at $16.6 million and $19.3 million, respectively, and are included in other non current assets on the consolidated balance sheet. The components of lease cost for the years ended December 31, 2021 and 2020 were as follows (in thousands):
| December 31,
| 2021 |  | 2020
Operating lease cost | $ | 5,613 |  |  | $ | 5,410 |
Variable lease cost | 960 |  |  | 1,083 |
Sublease income | (814) |  |  | (770) |
Net lease cost | $ | 5,759 |  |  | $ | 5,723 |
As of December 31, 2021, the maturities of the Company’s operating lease liabilities were as follows (in thousands):
2022 | 6,940 |
2023 | 6,796 |
2024 | 5,856 |
2025 | 5,084 |
2026 | 4,210 |
Thereafter | 3,554 |
Total lease payments | 32,440 |
Less: imputed interest | (6,972) |
Total lease liabilities | $ | 25,468 |

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=77888251 + Details
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