v3.26.1
Business Combination - Narrative (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Nov. 07, 2025
USD ($)
$ / shares
shares
Mar. 31, 2026
USD ($)
Dec. 31, 2025
acquisition
Mar. 31, 2025
USD ($)
Business Combination [Line Items]        
Number of businesses acquired | acquisition     1  
Adjustment to contingent consideration   $ 0.3   $ 0.0
American Well Intermediate Holdings, LLC | American Well Services, LLC        
Business Combination [Line Items]        
Ownership interests percentage 100.00%      
American Well Intermediate Holdings, LLC        
Business Combination [Line Items]        
Ownership (as a percent) 100.00%      
Consideration transferred $ 88.6      
Cash 61.8      
Working capital adjustment 3.0      
Fair value of contingent consideration 2.3 2.6    
Contingent consideration 5.0      
Adjustment to contingent consideration   $ 0.3    
Fair value of receivable 26.1      
Gross contractual amount 26.2      
Estimated uncollectible $ 0.1      
American Well Intermediate Holdings, LLC | Class A Common Stock        
Business Combination [Line Items]        
Issued shares | shares 1,998,401      
Business combination, price (in dollar per share) | $ / shares $ 13.75