Business (Details) - Welltower OP Inc |
9 Months Ended |
|---|---|
Sep. 30, 2026 | |
| Noncontrolling Interest [Line Items] | |
| Weighted average ownership percentage (in percent) | 98.174% |
| Ownership percentage by parent (in percent) | 98.168% |
| Other Investors | |
| Noncontrolling Interest [Line Items] | |
| Ownership interest (in percent) | 1.832% |