v3.26.1
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed balance sheets (Details)
$ / shares in Units, ¥ in Thousands, $ in Thousands
Dec. 31, 2025
CNY (¥)
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
CNY (¥)
shares
Dec. 31, 2024
$ / shares
Dec. 31, 2023
CNY (¥)
Current assets:          
Cash and cash equivalents ¥ 2,294,112 $ 327,436 ¥ 4,362,309   ¥ 2,925,709
Prepaid expenses and other current assets 2,520,657 359,770 1,938,054    
Term deposit - current 3,328,423 475,061 1,127,541    
Total current assets 14,430,947 2,059,710 10,731,599    
Non-current assets:          
Total non-current assets 15,870,637 2,265,195 12,394,327    
Total assets 30,301,584 4,324,905 23,125,926    
Current liabilities          
Amounts due to subsidiaries 269,316 38,440 273,081    
Accrued expenses and other current liabilities 4,148,323 592,085 3,034,205    
Payable for equity litigants settlement 149,900 21,393 119,560    
Total current liabilities 8,506,620 1,214,139 6,689,077    
Total liabilities 13,162,225 1,878,628 10,053,206    
Mezzanine equity:          
Total Mezzanine equity 1,514,660 216,185 1,514,660    
Shareholders' equity:          
Additional paid-in capital 17,278,391 2,466,122 16,705,240    
Accumulated deficits (2,438,985) (348,113) (5,953,788)    
Accumulated other comprehensive income 331,642 47,335 438,536    
Total Company's ordinary shareholders' equity 15,624,699 2,230,092 11,558,060    
Total liabilities, mezzanine equity and shareholders' equity 30,301,584 4,324,905 23,125,926    
Class A ordinary shares          
Shareholders' equity:          
Shares ¥ 24 $ 3 ¥ 24    
Equity, par value (in US dollars per share) | $ / shares   $ 0.000002   $ 0.000002  
Equity, shares authorized (in shares) 19,692,307,693 19,692,307,693 19,692,307,693    
Equity, shares issued (in shares) 2,158,141,800 2,158,141,800 2,124,695,348    
Equity, shares outstanding (in shares) 2,158,141,800 2,158,141,800 2,124,695,348    
Class B ordinary shares          
Shareholders' equity:          
Shares | ¥ ¥ 2   ¥ 2    
Equity, par value (in US dollars per share) | $ / shares   $ 0.000002   0.000002  
Equity, shares authorized (in shares) 5,000,000,000 5,000,000,000 5,000,000,000    
Equity, shares issued (in shares) 136,172,004 136,172,004 144,778,552    
Equity, shares outstanding (in shares) 136,172,004 136,172,004 144,778,552    
Convertible senior preferred shares          
Mezzanine equity:          
Total Mezzanine equity ¥ 1,514,660 $ 216,185 ¥ 1,514,660    
Shareholders' equity:          
Mezzanine equity, par value (in US dollars per share) | $ / shares   $ 0.000002   0.000002  
Mezzanine equity, shares authorized (in shares) 307,692,307 307,692,307 307,692,307    
Mezzanine equity, shares issued (in shares) 295,384,619 295,384,619 295,384,619    
Mezzanine equity, shares outstanding (in shares) 295,384,619 295,384,619 295,384,619    
Parent Company | Reportable Legal Entities          
Current assets:          
Cash and cash equivalents ¥ 16,590 $ 2,368 ¥ 639,488    
Prepaid expenses and other current assets 15,844 2,261 21,153    
Term deposit - current 210,189 30,000 656,820    
Total current assets 13,807,943 1,970,789 13,551,118    
Non-current assets:          
Investments in subsidiaries and VIE 4,616,572 658,917 (38,667)    
Total non-current assets 4,616,572 658,917 (38,667)    
Total assets 18,424,515 2,629,706 13,512,451    
Current liabilities          
Accrued expenses and other current liabilities 6,452 921 9,757    
Payable for equity litigants settlement 149,887 21,393 119,560    
Total current liabilities 1,285,156 183,429 439,731    
Total liabilities 1,285,156 183,429 439,731    
Mezzanine equity:          
Total Mezzanine equity 1,514,660 216,185 1,514,660    
Shareholders' equity:          
Additional paid-in capital 17,278,391 2,466,122 16,705,240    
Accumulated deficits (1,985,360) (283,368) (5,585,742)    
Accumulated other comprehensive income 331,642 47,335 438,536    
Total Company's ordinary shareholders' equity 15,624,699 2,230,092 11,558,060    
Total liabilities, mezzanine equity and shareholders' equity 18,424,515 2,629,706 13,512,451    
Parent Company | Reportable Legal Entities | Related Party          
Current assets:          
Amounts due from subsidiaries 13,565,320 1,936,160 12,233,657    
Current liabilities          
Amounts due to subsidiaries 1,128,817 161,115 310,414    
Parent Company | Reportable Legal Entities | Class A ordinary shares          
Shareholders' equity:          
Shares ¥ 24 $ 3 ¥ 24    
Equity, par value (in US dollars per share) | $ / shares   $ 0.000002   0.000002  
Equity, shares authorized (in shares) 19,692,307,693 19,692,307,693 19,692,307,693    
Equity, shares issued (in shares) 2,158,141,800 2,158,141,800 2,124,695,348    
Equity, shares outstanding (in shares) 2,158,141,800 2,158,141,800 2,124,695,348    
Parent Company | Reportable Legal Entities | Class B ordinary shares          
Shareholders' equity:          
Shares | ¥ ¥ 2   ¥ 2    
Equity, par value (in US dollars per share) | $ / shares   $ 0.000002   0.000002  
Equity, shares authorized (in shares) 5,000,000,000 5,000,000,000 5,000,000,000    
Equity, shares issued (in shares) 136,172,004 136,172,004 144,778,552    
Equity, shares outstanding (in shares) 136,172,004 136,172,004 144,778,552    
Parent Company | Reportable Legal Entities | Convertible senior preferred shares          
Mezzanine equity:          
Total Mezzanine equity ¥ 1,514,660 $ 216,185 ¥ 1,514,660    
Shareholders' equity:          
Mezzanine equity, par value (in US dollars per share) | $ / shares   $ 0.000002   $ 0.000002  
Mezzanine equity, shares authorized (in shares) 307,692,307 307,692,307 307,692,307    
Mezzanine equity, shares issued (in shares) 295,384,619 295,384,619 295,384,619    
Mezzanine equity, shares outstanding (in shares) 295,384,619 295,384,619 295,384,619