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Long-Term Investments (Details) ¥ in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Oct. 31, 2020 CNY (¥) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥) | Jun. 30, 2021 CNY (¥) | [1] | Jun. 30, 2021 USD ($) | [1] | Dec. 31, 2020 USD ($) | Jul. 31, 2017 CNY (¥)
Long-Term Investments (Details) [Line Items] |  |  |  |  |  |  |  |  |
Equity interest |  |  |  |  |  |  |  |  | 30.00%
Additional paid in capital |  | ¥ 4,230,656 | [1] | ¥ 3,645,669 |  | ¥ 4,514,146 | $ 699,152 | $ 648,376 |
Share of losses |  | ¥ 297 |  |  |  |  |  |  |
Equity interest description |  | The Group holds 1% to 40% equity interests in other third-party companies through investments in their equity interests. The Group holds 1% equity interests in a company and has the ability to exercise significant influence. For other investments, the Group holds over 20% equity interests. |  |  |  |  |  |  |
Addition impairment investment |  | ¥ 3,460 |  | 6,303 |  |  |  |  |
Fair value of impairment losses |  | ¥ 6,600 |  | ¥ 31,150 | ¥ 18,990 |  |  |  |
Youxiang City Hebei Real Estate Development and Operation Co., Ltd. (“Youxiang City”)[Member] |  |  |  |  |  |  |  |  |
Long-Term Investments (Details) [Line Items] |  |  |  |  |  |  |  |  |
Investment Owned, Balance, Principal Amount |  |  |  |  |  |  |  |  | ¥ 9,000
Additional paid in capital | ¥ 900 |  |  |  |  |  |  |  |
Returned amount | ¥ 2,100 |  |  |  |  |  |  |  |
[1] | Par value of ordinary shares, additional paid-in capital and share data have been retroactively restated to give effect to the reverse recapitalization that is discussed in Note 1(a)

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- Definition Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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