XML 86 R41.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
REVENUE AND ACCOUNTS RECEIVABLE - NARRATIVE (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Senior Living Services      
Disaggregation of Revenue [Line Items]      
Payment terms Residency agreements are generally for a term of 30 days, with resident fees billed monthly in advance. For residents under reimbursement arrangements with Medicaid, revenue is recorded based on contractually agreed-upon amounts or rates on a per resident, daily basis or as services are rendered.    
Customer concentration risk | Revenue      
Disaggregation of Revenue [Line Items]      
Revenue % 100.00% 100.00% 100.00%
Customer concentration risk | Revenue | Medicare and medicaid      
Disaggregation of Revenue [Line Items]      
Revenue % 55.60% 53.10% 51.40%