v3.25.3
Earnings Per Share - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
 1 Months Ended 3 Months Ended 9 Months Ended
Mar. 31, 2025
Dec. 31, 2022
Sep. 30, 2025
Dec. 31, 2024
Jul. 26, 2020
Class of Stock [Line Items]          
Common stock, par value (in dollars per share)     $ 0.01 $ 0.01  
Stock Purchase Contracts          
Class of Stock [Line Items]          
Number of shares issuable upon conversion (in shares)     800,000    
Number of shares outstanding (in shares) 2,291,338        
Common stock:          
Class of Stock [Line Items]          
Shares issued for settlement of prepaid stock purchase contracts (in shares) 29,636,386        
Ventas, Inc | The Warrant          
Class of Stock [Line Items]          
Number of shares authorized to be purchased (in shares)         16,300,000
Common stock, par value (in dollars per share)         $ 0.01
Share price (in dollars per share)         $ 3.00
Shares issued for warrant exercise (in shares)     5,700,000    
Class of warrant or right, exercised (in shares)     11,100,000    
Incremental shares issuable upon certain events for 2026 Notes          
Class of Stock [Line Items]          
Number of shares issuable upon conversion (in shares)     3,900,000    
Additional shares issuable (in shares)     1,000,000    
2029 Notes at initial conversion rate          
Class of Stock [Line Items]          
Number of shares issuable upon conversion (in shares)     55,000,000    
Additional shares issuable (in shares)     13,900,000    
Incremental shares issuable upon certain events for 2026 Notes | Convertible Debt          
Class of Stock [Line Items]          
Debt face amount     $ 23.3    
Interest rate, stated percentage     2.00%    
2029 Notes at initial conversion rate | Convertible Debt          
Class of Stock [Line Items]          
Debt face amount     $ 369.4    
Interest rate, stated percentage     3.50%    
Tangible Equity Units Senior Amortizing Notes | Other notes payable          
Class of Stock [Line Items]          
Interest rate, stated percentage   7.00%      
Number of shares issued (in shares)   2,875,000      
Stated amount, per unit (in dollars per share)   $ 50.00      
Aggregate offering   $ 143.8      
Prepaid stock purchase contracts (in dollars per share)   $ 8.8996