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Short-Term and Long-Term Debts - Summary of Contractual Obligations Which Excludes the Impact of Discount of Time Value (Detail)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Debt Instruments [Abstract]      
Payment due by period, less than 1 year ¥ 29,956,101 $ 4,700,766 ¥ 62,363,881
Payment due by period, 1 - 2 years 490,167,979 76,918,052 663,503,529
Payment due by period, 2 - 3 years 24,730,673 3,880,782 368,390,299
Total ¥ 544,854,753 $ 85,499,600 ¥ 1,094,257,709