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Accounts Receivable, Net - Summary of Accounts Receivables And Related Allowance For Doubtful Accounts (Detail)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Receivables [Abstract]      
Accounts receivable ¥ 223,544,396 $ 35,078,994 ¥ 141,594,170
Less: Allowance for doubtful accounts 0 0 0
Accounts receivable, net ¥ 223,544,396 $ 35,078,994 ¥ 141,594,170