v3.26.1
Organization and Nature of Operations - Combined financial information of the VIEs (Details)
¥ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2025
USD ($)
Consolidated Balance Sheets          
Cash and cash equivalents ¥ 47,167,904   ¥ 51,383,310   $ 6,744,921
Time deposits 92,639,378   75,441,355   13,247,255
Restricted cash 4,319,344   3,086,405   617,658
Accounts receivable, net 5,337,819   5,669,027   763,298
Inventories 689,183   571,548   98,552
Prepayments and other current assets, net 7,658,346   6,416,868   1,095,128
Short-term investments 22,803,503   10,756,143   3,260,858
Total current assets 180,615,477   153,324,656   25,827,670
Property, equipment and software, net 8,425,327   8,520,101   1,204,806
Operating lease right-of-use assets, net 320,298   541,071   45,802
Deferred tax assets 2,831,423   1,113,435   404,888
Restricted cash 3,893   5,208   557
Long-term investments 18,462,883   20,206,356   2,640,157
Other long-term assets 3,713,404   5,083,258   531,009
Total non-current assets 40,799,583   42,666,894   5,834,262
Total assets 221,415,060   195,991,550   31,661,932
Accounts payable 643,164   720,549   91,971
Salary and welfare payables 4,889,708   4,683,009   699,219
Taxes payable 3,874,143   2,759,185   553,996
Short-term loans 6,384,417   11,805,051   912,959
Contract liabilities 20,514,540   15,299,222   2,933,540
Accrued liabilities and other payables 15,949,772   14,229,032   2,280,787
Short-term operating lease liabilities 113,212   171,609   16,189
Total current liabilities 52,368,956   49,667,657   7,488,661
Deferred tax liabilities 2,637,258   2,173,117   377,123
Long-term operating lease liabilities 232,113   412,600   33,192
Other long-term liabilities 1,072,724   816,041   153,397
Total non-current liabilities 3,942,095   3,829,755   563,712
Total liabilities 56,311,051   53,497,412   $ 8,052,373
Net revenues:          
Total net revenues 112,625,807 $ 16,105,276 105,295,236 ¥ 103,468,159  
Cost of revenues and operating expenses          
Net income 34,797,784 4,976,016 30,256,347 29,357,223  
Cash flows from operating activities:          
Net cash (used in)/provided by operating activities 50,739,800 7,255,695 39,676,813 35,331,275  
Cash flows from investing activities:          
Net cash (used in)/provided by investing activities (33,181,344) (4,744,868) 17,916,402 (17,043,431)  
Cash flows from financing activities:          
Net cash (used in)/provided by financing activities (20,159,784) $ (2,882,811) (27,335,702) (21,467,054)  
Primary Beneficiary Consolidated VIEs          
Consolidated Balance Sheets          
Cash and cash equivalents 777,174   1,013,200    
Time deposits     70,000    
Restricted cash 4,258,359   3,025,450    
Accounts receivable, net 3,247,738   3,618,024    
Inventories 19,788   27,335    
Prepayments and other current assets, net 2,261,829   2,346,183    
Short-term investments 1,086,364   413,516    
Amounts due from Group companies ¥ 17,002,696   ¥ 11,716,452    
Other Receivable, after Allowance for Credit Loss, Current, Related Party, Type [Extensible Enumeration] srt:AffiliatedEntityMember   srt:AffiliatedEntityMember   srt:AffiliatedEntityMember
Total current assets ¥ 28,653,948   ¥ 22,230,160    
Property, equipment and software, net 9,667   9,905    
Operating lease right-of-use assets, net 30,637   35,015    
Deferred tax assets 63,621   15,191    
Restricted cash 3,204   3,201    
Long-term investments 946,017   1,119,963    
Other long-term assets 113,461   342,065    
Total non-current assets 1,166,607   1,525,340    
Total assets 29,820,555   23,755,500    
Accounts payable 36,138   51,905    
Salary and welfare payables 92,962   93,859    
Taxes payable 92,712   139,413    
Short-term loans 15,336        
Contract liabilities 18,577,529   13,702,547    
Accrued liabilities and other payables 5,900,414   4,555,787    
Short-term operating lease liabilities 11,995   18,398    
Amounts due to Group companies ¥ 1,868,605   ¥ 2,658,376    
Other Liability, Current, Related Party, Type [Extensible Enumeration] srt:AffiliatedEntityMember   srt:AffiliatedEntityMember   srt:AffiliatedEntityMember
Total current liabilities ¥ 26,595,691   ¥ 21,220,285    
Deferred tax liabilities 1,120        
Long-term operating lease liabilities 16,320   14,853    
Other long-term liabilities 866,884   648,623    
Total non-current liabilities 884,324   663,476    
Total liabilities 27,480,015   21,883,761    
Net revenues:          
Total net revenues 96,006,736   91,810,384 90,789,401  
Cost of revenues and operating expenses          
Total cost of revenues and operating expenses (95,496,934)   (91,398,303) (90,484,679)  
Net income 518,906   177,118 328,357  
Cash flows from operating activities:          
Net cash (used in)/provided by operating activities (699,767)   997,677 (333,662)  
Cash flows from investing activities:          
Net cash (used in)/provided by investing activities 1,792,989   (1,672,760) (82,645)  
Cash flows from financing activities:          
Net cash (used in)/provided by financing activities (95,603)   213,458 (37,166)  
Primary Beneficiary Consolidated VIEs' third-parties          
Net revenues:          
Total net revenues 94,880,469   90,872,284 90,054,544  
Cost of revenues and operating expenses          
Total cost of revenues and operating expenses (19,840,943)   (18,544,042) (17,468,565)  
Cash flows from operating activities:          
Net cash (used in)/provided by operating activities 82,085,108   74,828,624 72,325,460  
Cash flows from investing activities:          
Net cash (used in)/provided by investing activities (480,011)   (234,760) (82,645)  
Cash flows from financing activities:          
Net cash (used in)/provided by financing activities 15,336   (16,095) 15,673  
Primary Beneficiary Consolidated VIEs' intra-Group companies          
Net revenues:          
Total net revenues 1,126,267   938,100 734,857  
Cash flows from investing activities:          
Net cash (used in)/provided by investing activities (2,273,000)   1,438,000    
Cash flows from financing activities:          
Net cash (used in)/provided by financing activities (110,939)   229,553 (52,839)  
Primary Beneficiary Consolidated VIEs' intra-Group companies | Technical consulting and related service          
Cost of revenues and operating expenses          
Total cost of revenues and operating expenses (75,453,222)   (72,698,641) (72,992,568)  
Cash flows from operating activities:          
Net cash (used in)/provided by operating activities (83,737,036)   (73,785,893) (73,298,667)  
Primary Beneficiary Consolidated VIEs' intra-Group companies | Other transactions          
Cash flows from operating activities:          
Net cash (used in)/provided by operating activities 952,161   (45,054) 639,545  
Primary Beneficiary Consolidated VIEs' Other intra-Group Companies          
Cost of revenues and operating expenses          
Total cost of revenues and operating expenses ¥ (202,769)   ¥ (155,620) ¥ (23,546)