v3.26.1
Condensed Financial Information of the Parent Company - Schedule of Statements of Cash Flows (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
- Investment and interest income $ (190,814) $ (104,797) $ (292,379)
Changes in operating assets and liabilities:      
- Prepaid expenses and other receivables 2,100 7,961 13,884
Investing activities      
Proceeds from maturity and sales of investments 10,673,092 5,594,972 2,513,972
Purchase of investments (6,218,953) (4,865,159) (4,918,373)
Financing activities      
- Proceeds from exercised stock options 0 0 676
Cash paid for dividends (3,534,344) (946,997) (328,080)
Increase (decrease) in cash and cash equivalents and restricted cash 554,212 (526,905) (2,757,806)
Cash and cash equivalents and restricted cash, beginning of year 602,217 1,129,122 3,886,928
Cash and cash equivalents and restricted cash, end of year 1,156,429 602,217 1,129,122
Parent Company      
Operating activities      
Net Income (Loss) (59,680) 90,905 (13,491)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
- Investment and interest income 2,483 0 0
- Equity losses (earnings) of subsidiaries, net of tax 46,581 (102,115) 5,828
Changes in operating assets and liabilities:      
- Amount due from subsidiaries (1,051) 3,303 8,366
- Prepaid expenses and other receivables 108 (309) 314
- Dividend receivable (99) (322) 0
- Amount due to subsidiaries 0 (4,448) 454
- Accrued expenses and other payables 1,098 2,058 1,116
Net cash provided by (used in) operating activities from continuing operations (10,560) (10,928) 2,587
Investing activities      
Distrubition from a subsidiary 3,958,189 0 0
Proceeds from maturity and sales of investments 107,979 93,418 49,850
Purchase of investments (85,000) (76,000) (148,000)
Net cash used in investing activities from continuing operations 3,981,168 17,418 (98,150)
Financing activities      
- Proceeds from exercised stock options 0 0 676
Cash paid for dividends (3,300,333) 0 0
Net cash (used in) provided by financing activities (3,300,333) 0 676
Increase (decrease) in cash and cash equivalents 670,275 6,490 (94,887)
Cash and cash equivalents and restricted cash, beginning of year 16,527 10,037 104,924
Cash and cash equivalents and restricted cash, end of year $ 686,802 $ 16,527 $ 10,037