v3.26.1
Equity-Based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 16, 2025
Dec. 06, 2025
Jun. 30, 2026
Apr. 30, 2026
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Compensation expenses         $ 48,280 $ 129,559 $ 93,884 $ 129,559  
Class A Common Stock | Future Acquisitions                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Share issued (in shares)             822,214    
Compensation expenses         800   $ 800    
Vesting percentage             20.00%    
Unamortized compensation cost not yet recognized     $ 23,200   23,200   $ 23,200    
Weighted-average period cost not yet recognized             4 years 9 months 18 days    
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Compensation expenses         41,167 104,512 $ 82,393 104,512  
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Compensation expenses           104,500   104,500  
Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Compensation expenses         $ 7,113 $ 25,047 $ 11,491 $ 25,047  
Profits Interest Units (PIUs)                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Granted, weighted average grant date fair value (in dollars per share)         $ 748.79   $ 748.79    
Share issued (in shares)           173,025   173,025  
AT Umbrella LLC LTIP Units                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Granted, weighted average grant date fair value (in dollars per share)             $ 21.38    
Share issued (in shares)       707,823          
Compensation expenses         $ 1,700   $ 2,600    
Vesting percentage             20.00%    
Unamortized compensation cost not yet recognized     30,200   30,200   $ 30,200    
Weighted-average period cost not yet recognized             4 years 7 months 6 days    
Annual anniversary of the vesting commencement             5 years    
Issuance of threshold (in dollars per share)             $ 28.23   $ 16.00
AT Umbrella LLC LTIP Units | Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Compensation expenses         1,500   $ 2,400    
Class X Aggregator Units                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Granted, weighted average grant date fair value (in dollars per share)             $ 16.00    
Share issued (in shares)             0    
Compensation expenses         42,300   $ 83,400    
Vesting percentage             20.00%    
Unamortized compensation cost not yet recognized     $ 618,700   618,700   $ 618,700    
Weighted-average period cost not yet recognized             4 years 3 months 18 days    
Class X Aggregator Units | Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Compensation expenses         36,200   $ 73,700    
Class X Aggregator Units | Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Compensation expenses         $ 6,100   $ 9,700    
2025 Equity Incentive Plan                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Common stock reserved for issuance (in shares)     12,290,828   12,290,828   12,290,828    
Shares outstanding percentage   5.00%              
Annual shares authorized increase, percent of outstanding shares (in shares)   0              
2025 Equity Incentive Plan | Restricted Stock Units (RSUs)                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Granted, weighted average grant date fair value (in dollars per share)   $ 16.26              
Share issued (in shares) 5,440,720   61,231            
Compensation expenses         $ 3,400   $ 7,000    
Vesting percentage             16.70%    
Unamortized compensation cost not yet recognized     $ 75,400   75,400   $ 75,400    
Weighted-average period cost not yet recognized             5 years 4 months 24 days    
2025 Equity Incentive Plan | Restricted Stock Units (RSUs) | Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Compensation expenses         2,700   $ 5,500    
2025 Equity Incentive Plan | Restricted Stock Units (RSUs) | Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense                  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                  
Compensation expenses         $ 700   $ 1,500