Guarantee liabilities - Activities of the Group's obligations associated with the deferred guarantee income (Details) |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
CNY (¥)
|
|
| Guarantee liabilities | ||||
| Deferred guarantee income, beginning of year | ¥ 164,724,512 | $ 23,555,292 | ¥ 46,597,143 | |
| Fair value of deferred guarantee income at inception of new loans | 981,672,870 | 140,377,353 | 332,919,374 | ¥ 72,160,875 |
| Release of deferred guarantee income | (678,767,939) | (97,062,524) | (214,792,005) | (25,563,732) |
| Deferred guarantee income, end of year | ¥ 467,629,443 | $ 66,870,121 | ¥ 164,724,512 | ¥ 46,597,143 |