Basis of Presentation - Additional Information (Detail) |
Sep. 30, 2016
Community
State
Resident
|
|---|---|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Senior housing communities operated by company | 128 |
| Number of states in which senior housing communities operated | State | 23 |
| Aggregate capacity of residents in company operated senior housing communities | Resident | 16,100 |
| Senior housing communities owned by company | 78 |
| Senior housing communities on lease by company | 50 |