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Net Gain (Loss) On Equity Securities, Net - Summary Of Gain Loss On Investment (Detail) | 12 Months Ended
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Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥)
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Unrealized gain on equity securities still held at the reporting date | ¥ 45,804,034 | $ 7,187,652 | ¥ 3,315,475,734 | ¥ 41,581,818
Net gain (loss) on equity securities sold during the period | (58,795,556) | (9,226,306) | 37,905,479 | 44,430,100
Total | ¥ (12,991,522) | $ (2,038,654) | ¥ 3,353,381,213 | ¥ 86,011,918

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- Definition Amount of unrealized and realized gain (loss) on investment in debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)(a)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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