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Debt - Narrative (Details)
12 Months Ended
Dec. 21, 2018
USD ($)
tranche
option
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Mortgages Payable [Line Items]      
Debt, net   $ 572,850,000 $ 561,782,000
Amount of gain (loss) reclassified from accumulated comprehensive income into net income   379,000  
Mortgages      
Mortgages Payable [Line Items]      
Long-term debt, net   175,321,000 212,927,000
Line of Credit | Term Loan      
Mortgages Payable [Line Items]      
Long-term debt, net   $ 397,529,000 $ 348,855,000
Revolving Credit Facility | Revolving Credit Facility, Amended and Restated      
Mortgages Payable [Line Items]      
Maximum borrowing capacity $ 350,000    
Debt instrument, term 4 years    
Extension option 6 months    
Number of extension options | option 2    
Leverage ratio, fee percentage   15.00% 0.15%
Revolving Credit Facility | Revolving Credit Facility, Amended and Restated | Minimum      
Mortgages Payable [Line Items]      
Commitment fee percentage   15.00%  
Revolving Credit Facility | Revolving Credit Facility, Amended and Restated | Maximum      
Mortgages Payable [Line Items]      
Commitment fee percentage   30.00%  
Unsecured Debt | Term Loan      
Mortgages Payable [Line Items]      
Debt instrument, face amount $ 400,000,000    
Number of tranches | tranche 2    
Unsecured Debt | Term Loan, Tranche One      
Mortgages Payable [Line Items]      
Debt instrument, term 5 years    
Debt instrument, face amount $ 250,000,000    
Unsecured Debt | Term Loan, Tranche Two      
Mortgages Payable [Line Items]      
Debt instrument, term 5 years 6 months    
Debt instrument, face amount $ 150,000,000