Quarterly report pursuant to Section 13 or 15(d)

Summary Of Significant Accounting Policies (Narrative) (Details)

v3.19.3
Summary Of Significant Accounting Policies (Narrative) (Details)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
segment
property
shares
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Summary Of Significant Accounting Policies [Line Items]          
Common units in operating partnership | shares     7,305,355    
Number of units in multi-family asset | property     395    
Cash and cash equivalents maximum benchmark (in months)     3 months    
Minimum expected future benefit period on expenditures cost to be capitalized and depreciated (in years)     2 years    
Minimum expected future benefit period on transaction cost to be capitalized and depreciated (in years)     1 year    
Length of time criteria for expected sale of assets to be classified as properties held for disposition     12 months    
Below market lease, net $ 2,500,000   $ 2,500,000   $ 1,800,000
Below market leases, accumulated amortization 11,200,000   11,200,000   10,800,000
Impairment on assets     0 $ 0  
Income tax expense     0    
Tax benefit for uncertain tax positions     $ 0   0
Number of operating segments | segment     2    
Number of reportable segments | segment     1    
Cost of operations 32,468,000 $ 31,197,000 $ 97,521,000 94,449,000  
General and administrative expenses 4,051,000 2,882,000 10,111,000 8,560,000  
Net real estate investment property 1,897,111,000   1,897,111,000   1,822,390,000
Properties held for sale, net 124,937,000   124,937,000   128,093,000
Rental income 108,064,000 103,808,000 323,671,000 309,391,000  
Rental income, operating leases 84,100,000 80,900,000 250,700,000 240,300,000  
Rental income, variable lease payments 24,000,000.0 22,900,000 73,000,000.0 69,100,000  
Operating lease, right-of-use asset 1,700,000   1,700,000    
Operating lease, liability $ 1,700,000   $ 1,700,000    
Operating lease, discount rate 4.20%   4.20%    
Reclassification [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Net real estate investment property         (128,100,000)
Properties held for sale, net         128,100,000
Divisional Vice President [Member] | Reclassification [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Cost of operations   (457,000)   (1,500,000)  
General and administrative expenses   $ 457,000   $ 1,500,000  
Above Market Leases [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Finite-lived intangible assets, net $ 1,400,000   $ 1,400,000   1,800,000
Finite-lived intangible assets, accumulated amortization (10,400,000)   (10,400,000)   (10,000,000.0)
Acquired In Place Leases [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Finite-lived intangible assets, net 6,300,000   6,300,000   4,700,000
Finite-lived intangible assets, accumulated amortization $ 3,100,000   $ 3,100,000   $ 1,300,000
JV Partner [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Consolidated entity ownership percentage 5.00%   5.00%    
Minimum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Estimated useful life (in years)     5 years    
Operating lease, expiration date     Sep. 30, 2029    
Operating lease, remaining lease term 10 years   10 years    
Maximum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Estimated useful life (in years)     30 years    
Operating lease, expiration date     Jan. 31, 2030    
Operating lease, remaining lease term 10 years 3 months 18 days   10 years 3 months 18 days