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Lease (Details) - Schedule of Supplemental balance sheet information ¥ in Thousands, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Jun. 30, 2021 CNY (¥) | Jun. 30, 2021 USD ($) | Dec. 31, 2020 USD ($)
Schedule of Supplemental balance sheet information [Abstract] |  |  |  |  |
ROU assets | ¥ 879,348 | ¥ 1,851,729 | ¥ 719,568 | $ 111,447 | $ 134,766
Operating lease liabilities – current | (365,049) | (589,467) | (329,096) |  |
Operating lease liabilities – non current | ¥ (580,562) | ¥ (1,393,691) | ¥ (448,329) |  |
Weighted average remaining lease terms | 7 years 8 months 15 days | 7 years 7 months 6 days | 7 years 7 months 17 days | 7 years 7 months 17 days | 7 years 8 months 15 days
Weighted average incremental borrowing rate | 10.75% | 10.53% |  |  |

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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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