Quarterly report pursuant to Section 13 or 15(d)

RELATED PARTY TRANSACTIONS (Details)

v3.20.1
RELATED PARTY TRANSACTIONS (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
property
shares
Mar. 31, 2019
USD ($)
Related Party Transaction [Line Items]    
Payroll and related costs reimbursed to the PROs by the Company $ 30,592 $ 26,457
Supervisory and Administrative Fee Agreement | Management | Participating Regional Operator (PRO)    
Related Party Transaction [Line Items]    
Supervisory and administrative fees paid to the PROs $ 5,300 4,700
Supervisory and Administrative Fee Agreement | Management | Participating Regional Operator (PRO) | Minimum    
Related Party Transaction [Line Items]    
Supervisory and administrative fee agreement of gross revenue, percent 5.00%  
Supervisory and Administrative Fee Agreement | Management | Participating Regional Operator (PRO) | Maximum    
Related Party Transaction [Line Items]    
Supervisory and administrative fee agreement of gross revenue, percent 6.00%  
Payroll Services | Management | Participating Regional Operator (PRO)    
Related Party Transaction [Line Items]    
Payroll and related costs reimbursed to the PROs by the Company $ 8,800 7,800
Due Diligence Costs | Management | Participating Regional Operator (PRO)    
Related Party Transaction [Line Items]    
Due diligence expenses payable to the PROs $ 200 $ 300
Real Estate Purchases | Joint Venture    
Related Party Transaction [Line Items]    
Number of properties acquired | property 1  
Consideration in acquisition transaction $ 7,500  
OP units | Real Estate Purchases | Management | Mr. Arlen Nordhagen    
Related Party Transaction [Line Items]    
OP units issued in acquisition (in shares) | shares 58,376  
Value of OP units issued in acquisition $ 1,500  
OP units | Real Estate Purchases | Management | Mr. David Cramer    
Related Party Transaction [Line Items]    
OP units issued in acquisition (in shares) | shares 29,689  
Value of OP units issued in acquisition $ 700