Organization - Schedule of Operations of VIEs (Details) |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
|
| Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items] | |||||
| Revenues | ¥ 40,963,626 | $ 5,857,721 | ¥ 216,428,374 | ¥ 126,338,353 | |
| Net income | 708,627,396 | 101,332,370 | 91,731,395 | 39,133,539 | |
| Cash and cash equivalents | 5,532,375,615 | 4,263,311,636 | 7,207,343,478 | $ 791,119,191 | |
| Time and structured deposits | 1,885,242,800 | 2,009,018,598 | 269,586,135 | ||
| Investment in equity method investee | 126,532,780 | 146,100,984 | 18,000,000 | ||
| Interest and investment income, net | 990,368,590 | 141,620,825 | 380,062,136 | 255,332,621 | |
| Gain on derivative instruments | 188,710,582 | 26,985,254 | 19,457,360 | 153,834,938 | |
| General and administrative | 291,503,527 | 41,684,450 | 276,564,752 | 273,588,744 | |
| Variable Interest Entity | |||||
| Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items] | |||||
| Revenues | 2,914,256 | 416,733 | 198 | 47,770,942 | |
| Net income | 279,960,596 | 40,033,833 | ¥ (448,652,409) | ¥ 171,107,836 | |
| Cash and cash equivalents | 1,466,000,000 | 210,000,000 | |||
| Short term deposit | 854,000,000 | 122,000,000 | |||
| Restricted cash | 1,487,000,000 | 213,000,000 | |||
| Time and structured deposits | 750,000,000 | 107,000,000 | |||
| Investment in equity method investee | 1,556,000,000 | $ 223,000,000 | |||
| Interest and investment income, net | 378,000,000 | 54,000,000 | |||
| Gain on derivative instruments | 132,000,000 | 19,000,000 | |||
| General and administrative | ¥ 180,000,000 | $ 26,000,000 | |||
| X | ||||||||||
- Definition Organization, consolidation and presentation of financial statements. No definition available.
|
| X | ||||||||||
- Definition Amount of deposits classified as current. No definition available.
|
| X | ||||||||||
- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Details
|