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Short-Term and Long-Term Debts - Summary of Short-Term Debts (Detail) | 12 Months Ended |
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Dec. 31, 2021 CNY (¥) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2021 USD ($)
Short-term Debt [Line Items] |  |  |
Short-term borrowings | ¥ 579,776,131 | ¥ 355,816,940 | $ 90,979,527
Minimum [Member] |  |  |
Short-term Debt [Line Items] |  |  |
Short-term borrowings, Fixed annual rate | 3.75% | 3.40% | 3.75%
Short-term borrowings, Term | 1 month | 1 month |
Maximum [Member] |  |  |
Short-term Debt [Line Items] |  |  |
Short-term borrowings, Fixed annual rate | 6.50% | 6.80% | 6.50%
Short-term borrowings, Term | 12 months | 12 months |

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- Definition The portion of the carrying amount of short-term borrowings outstanding as of the balance sheet date which accrues interest at a set, unchanging rate. + References No definition available. + Details
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- Definition Description of the short-term debt arrangement, and disclosures pertaining to the underlying arrangements, including repayment terms, interest rates, restrictions on assets and activities, debt covenants, and other matters important to users of the financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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