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Leases (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Summary of Cash Flow Information Related to Operating Leases | Supplemental balance sheet and cash flow information related to operating leases is as follows (in thousands):
|  | As of March 31, 2021 |  |  | As of December 31, 2020 |
Operating lease right-of-use asset |  | $ | 9,974 |  |  | $ | 10,864 |
Accrued rent |  |  | 819 |  |  |  | 877 |
Total operating lease right-of-use asset, net |  | $ | 9,155 |  |  | $ | 9,987 |
Short-term operating lease liabilities |  | $ | 3,014 |  |  | $ | 3,033 |
Long-term operating lease liabilities |  | $ | 6,960 |  |  | $ | 7,831 |
Total operating lease liabilities |  | $ | 9,974 |  |  | $ | 10,864 |
##### Supplemental cash flow information related to leases was as follows (in thousands):
|  | Three months ended March 31, 2021 |  |  | Year ended December 31, 2020 |
Cash paid for amounts included in the measurement of operating lease liabilities |  | $ | 871 |  |  | $ | 3,192
| Supplemental balance sheet and cash flow information related to operating leases is as follows:
|  | December 31, 2020 |  |  | December 31, 2019 |
Operating lease right-of-use asset |  | $ | 10,864 |  |  | $ | 13,219 |
Accrued rent |  |  | 877 |  |  |  | 835 |
Total operating lease right-of-use asset, net |  | $ | 9,987 |  |  | $ | 12,384 |
Short-term operating lease liabilities |  | $ | 3,033 |  |  | $ | 2,795 |
Long-term operating lease liabilities |  |  | 7,831 |  |  |  | 10,424 |
Total operating lease liabilities |  | $ | 10,864 |  |  | $ | 13,219 |
Cash paid for amounts included in the measurement of operating lease liabilities |  |  | $3.2 million |  |  |  | $2.5 million |
Summary of Maturities of Lease Liabilities |  | Maturities of lease liabilities are as follows (in thousands):
As of December 31, 2020 |  | Seattle Lease |  |  | Seoul Lease (Related Party) |
2021 |  | $ | 1,938 |  |  | $ | 1,443 |
2022 |  |  | 1,987 |  |  |  | 1,471 |
2023 |  |  | 2,037 |  |  |  | 1,267 |
2024 |  |  | 1,732 |  |  |  | — |
2025 |  |  | — |  |  |  | — |
Thereafter |  |  | — |  |  |  | — |
Less: Imputed Interest |  |  | (683 | ) |  |  | (328 | )
Total |  | $ | 7,011 |  |  | $ | 3,853 |

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- Definition Schedule of cash flow information related to operating leases. + References No definition available. + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details
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