Quarterly report pursuant to Section 13 or 15(d)

DEBT FINANCING - Narrative (Details)

v3.4.0.3
DEBT FINANCING - Narrative (Details)
3 Months Ended
Aug. 13, 2015
USD ($)
component
financial_institution
Apr. 01, 2014
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Debt Instrument [Line Items]        
Debt financing     $ 634,312,000 $ 567,795,000
Line of Credit [Member] | Credit Facility [Member]        
Debt Instrument [Line Items]        
Number of financial institutions in lender agreement | financial_institution 11      
Increase in credit facility $ 125,000,000.0      
Current borrowing capacity $ 550,000,000.0      
Number of lender agreement components | component 2      
Line of Credit [Member] | Credit Facility [Member] | Revolving line of credit [Member]        
Debt Instrument [Line Items]        
Maximum borrowing capacity   $ 350,000,000.0 $ 90,525,000.000  
Borrowing base calculation, minimum occupancy rate of property   75.00%    
Revolver extension fee, percent     0.20%  
Line of Credit [Member] | Credit Facility [Member] | Revolving line of credit [Member] | LIBOR [Member]        
Debt Instrument [Line Items]        
Borrowing rate spread     1.60%  
Line of Credit [Member] | Credit Facility [Member] | Revolving line of credit [Member] | Minimum [Member]        
Debt Instrument [Line Items]        
Unused borrowing capacity, percent   0.20%    
Line of Credit [Member] | Credit Facility [Member] | Revolving line of credit [Member] | Maximum [Member]        
Debt Instrument [Line Items]        
Unused borrowing capacity, percent   0.25%    
Line of Credit [Member] | Credit Facility [Member] | Term Loan [Member]        
Debt Instrument [Line Items]        
Maximum borrowing capacity   $ 200,000,000.0    
Line of Credit [Member] | Credit Facility [Member] | Term Loan [Member] | LIBOR [Member]        
Debt Instrument [Line Items]        
Borrowing rate spread     1.50%  
Line of Credit [Member] | Amended Credit Facility [Member]        
Debt Instrument [Line Items]        
Maximum borrowing capacity $ 700,000,000.0      
Mortgages [Member] | Fixed Rate Mortgages [Member]        
Debt Instrument [Line Items]        
Minimum effective interest rate     2.43%  
Maximum effective interest rate     5.00%