Property, Plant and Equipment and Leasehold Intangibles, Net - Narrative (Details) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2025
USD ($)
|
Sep. 30, 2024
USD ($)
|
Sep. 30, 2025
USD ($)
community
|
Sep. 30, 2024
USD ($)
|
|
| Property, Plant and Equipment [Line Items] | ||||
| Depreciation and amortization expense | $ 94.8 | $ 90.1 | $ 278.6 | $ 264.2 |
| Property, plant and equipment and leasehold intangibles, classified as held for sale | 68.8 | $ 68.8 | ||
| Assisted Living And Memory Care Segment | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Number of communities classified as held for sale | community | 4 | |||
| CCRCs Segment | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Number of communities classified as held for sale | community | 2 | |||
| Nonrecurring | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Non-cash impairment charges | $ 62.7 | $ 0.9 | $ 65.1 | $ 2.6 |