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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 |  |  |

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