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Income Taxes - Summary of Current and Deferred Component of Income Tax Expenses (Detail)
12 Months Ended
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2019
CNY (¥)
Income Tax Disclosure [Abstract]        
Current income tax expense ¥ 603,765,914 $ 94,744,047 ¥ 121,701,686 ¥ 91,994,704
Deferred income tax (benefit) expense (582,913,268) (91,471,812) 248,151,964 (9,034,211)
Income tax expenses ¥ 20,852,646 $ 3,272,235 ¥ 369,853,650 ¥ 82,960,493