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Business Combinations (Details) - Schedule of allocation of the purchase price of the assets acquired and liabilities assumed ¥ in Thousands, $ in Thousands | Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) | May 31, 2019 CNY (¥) | Jan. 01, 2019 CNY (¥) | Jun. 30, 2018 CNY (¥)
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Schedule of allocation of the purchase price of the assets acquired and liabilities assumed [Abstract] |  |  |  |  |  |
Cash and cash equivalents | ¥ 90,115 | $ 13,811 | ¥ 140,132 | ¥ 4,254 |  | ¥ 24,248
Accounts receivable |  |  |  |  |  | 165
Prepayments and other current assets |  |  |  | 8,974 |  | 43,122
Inventories |  |  |  |  |  | 2,517
Prepaid tax | 14,460 | 2,216 | 12,265 |  |  | 613
Other current assets |  |  |  |  |  | 3,804
Property, plant and equipment |  |  |  | 6,959 |  | 3,679
Operating lease right-of-use | 322,559 | 49,434 | 484,225 | 15,320 | ¥ 397,490 |
Intangible assets | 19,337 |  | 24,968 | 200 |  | 41,010
Accounts payable |  |  |  | (1,518) |  | (1,467)
Deferred revenue |  |  |  | (25,098) |  | (149,656)
Salary and welfare payable | (67,609) | (10,362) | (74,139) | (1,219) |  | (6,981)
Deferred tax liabilities |  |  |  |  |  | (17,832)
Fair value of non-controlling interests |  |  |  |  |  | (26,070)
Accrued expenses and other payables |  |  |  | (2,795) |  |
Operating lease liabilities | ¥ (131,151) | $ (20,100) | ¥ (142,155) | (15,320) | ¥ (99,706) |
Goodwill |  |  |  | 25,253 |  | 221,888
Total purchase consideration |  |  |  | ¥ 15,010 |  | ¥ 139,040

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