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Short-Term and Long-Term Debts - Additional Information (Detail) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥)
--- | --- | --- | ---
Weighted average interest rate for outstanding debts | 5.72% | 5.72% | 5.92%
Short-term borrowings | ¥ 579,776,131 | $ 90,979,527 | ¥ 355,816,940
Long term debt | 1,424,386,034 | 223,517,251 | 2,206,574,921
Unused lines of Credit [Member] |  |  |
Short-term borrowings | 615,000,000 | 96,000,000 | 705,000,000
Long term debt | 1,012,000,000 | 159,000,000 | 193,000,000
Lease Financing [Member] |  |  |
Financing lease receivables, collateralized | 945,403,768 | 148,354,481 | 1,083,014,892
Long term debt | ¥ 0 | $ 0 | ¥ 401,761,874

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