| Standard label: | Continuing Care Retirement Communities, Obligation for Future Service, Amount |
| Name: | us-gaap:ContinuingCareRetirementCommunitiesObligationForFutureServiceAmount |
| Documentation: | Present value of liability to provide future service and use of facility related to continuing-care contract. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:ContinuingCareRetirementCommunitiesObligationForFutureServiceAmount |
| Label | Role | Language |
| Continuing Care Retirement Communities, Obligation for Future Service, Amount | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 954 440 50 1 (b) | http://www.xbrl.org/2003/role/disclosureRef | 954 |