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Short-Term and Long-Term Debts - Summary of Long-Term Debts (Parenthetical) (Detail) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥)
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Long term debt | ¥ 1,424,386,034 | $ 223,517,251 | ¥ 2,206,574,921
Lease Financing [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long term debt | ¥ 0 | $ 0 | ¥ 401,761,874

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