Quarterly report pursuant to Section 13 or 15(d)

Summary of significant accounting policies - Additional Information (Details)

v3.22.2
Summary of significant accounting policies - Additional Information (Details)
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 31, 2020
multifamilyApartmentUnit
Jun. 30, 2022
USD ($)
shares
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
customer
segment
multifamilyApartmentUnit
shares
Jun. 30, 2021
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Summary Of Significant Accounting Policies [Line Items]              
Land and building held for development, net   $ 112,952,000   $ 112,952,000     $ 76,575,000
Common units in operating partnership (in shares) | shares   7,305,355   7,305,355      
Below market lease, net   $ 2,200,000   $ 2,200,000     2,800,000
Below market leases, accumulated amortization   $ 13,400,000   $ 13,400,000     $ 13,100,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]   Other assets   Other assets     Other assets
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]   Accrued and other liabilities   Accrued and other liabilities     Accrued and other liabilities
Operating lease, right-of-use asset   $ 1,300,000   $ 1,300,000     $ 1,300,000
Operating lease, liability   1,300,000   1,300,000     1,300,000
Operating lease, accumulated amortization   400,000   $ 400,000     300,000
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      
Impairment on assets       $ 0 $ 0    
Rental income   110,910,000 $ 109,364,000 223,750,000 217,411,000    
Rental income, base payments   83,100,000 83,700,000 167,900,000 165,800,000    
Rental income, variable lease payments   27,800,000 $ 25,700,000 55,800,000 $ 51,600,000    
Deferred rent receivable       6,200,000      
Rent receivable abated       $ 1,600,000      
Deferral agreement, number of customers | customer       289      
Deferral agreement, percentage of customers on a percentage of total rental income basis (as a percent)       9.30%      
Deferred payments received       $ 5,700,000      
Collection rate percentage on deferral repayments (as a percent)       99.80%      
Unrecognized tax benefits   0   $ 0     0
Number of operating segments | segment       2      
Number of reportable segments | segment       1      
Domestic Tax Authority              
Summary Of Significant Accounting Policies [Line Items]              
Income tax expense       $ 0      
Forecast              
Summary Of Significant Accounting Policies [Line Items]              
Deferred payments received           $ 500,000  
Above Market Leases              
Summary Of Significant Accounting Policies [Line Items]              
Finite-lived intangible assets, net   500,000   500,000     600,000
Finite-lived intangible assets, accumulated amortization   11,800,000   11,800,000     11,600,000
Acquired In Place Leases              
Summary Of Significant Accounting Policies [Line Items]              
Finite-lived intangible assets, net   4,500,000   4,500,000     6,000,000
Finite-lived intangible assets, accumulated amortization   $ 12,000,000   $ 12,000,000     10,500,000
Minimum              
Summary Of Significant Accounting Policies [Line Items]              
Operating lease, remaining lease term (in years)   7 years 3 months 18 days   7 years 3 months 18 days      
Estimated useful life (in years)       5 years      
Maximum              
Summary Of Significant Accounting Policies [Line Items]              
Operating lease, remaining lease term (in years)   7 years 7 months 6 days   7 years 7 months 6 days      
Estimated useful life (in years)       30 years      
Brentford at The Mile              
Summary Of Significant Accounting Policies [Line Items]              
Number of units developed | multifamilyApartmentUnit 411     411      
Land and building held for development, net   $ 5,100,000   $ 5,100,000      
Brentford at The Mile | JV Partner              
Summary Of Significant Accounting Policies [Line Items]              
Consolidated entity ownership (as a percent) 1.80% 1.80%   1.80%      
Brentford at The Mile | Investment in Joint Venture              
Summary Of Significant Accounting Policies [Line Items]              
Consolidated entity ownership (as a percent) 98.20% 98.20%   98.20%      
Land and building held for development, net   $ 77,200,000   $ 77,200,000     $ 59,900,000
Highgate at the Mile              
Summary Of Significant Accounting Policies [Line Items]              
Number of units developed | multifamilyApartmentUnit       395      
Highgate at the Mile | JV Partner              
Summary Of Significant Accounting Policies [Line Items]              
Consolidated entity ownership (as a percent)   5.00%   5.00%      
Highgate at the Mile | Investment in Joint Venture              
Summary Of Significant Accounting Policies [Line Items]              
Consolidated entity ownership (as a percent)   95.00%   95.00%