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Summary of Significant Accounting Policies - Additional Information (Detail)
 3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
investment
property
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
property
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Jun. 30, 2024
USD ($)
investment
property
Jun. 30, 2023
USD ($)
Real Estate Properties [Line Items]              
Restricted cash $ 26,364,000   $ 27,880,000     $ 26,364,000  
Acquisition of above-market in-place leases, amortization period 6 months         6 months  
Amortization expense for intangible assets $ 0     $ 0   $ 66,000 $ 399,000
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration] Depreciation and amortization expense     Depreciation and amortization expense   Depreciation and amortization expense Depreciation and amortization expense
Write-off of fully amortized intangible assets $ 0     $ 0   $ 398,000 $ 1,099,000
Impairment charges 0     0   15,107,000 0
Depreciation expense 53,757,000     53,700,000   107,080,000 106,587,000
Fully depreciated fixed assets, wrote-off 8,328,000     5,114,000   15,604,000 8,033,000
Net casualty losses 465,000     680,000   2,767,000 831,000
Interest costs capitalized 1,771,000     1,715,000   3,341,000 3,168,000
Investments in real estate under development $ 115,196,000   98,365,000     $ 115,196,000  
Number of investment in unconsolidated real estate entities | investment 4         4  
Impairment of real estate   $ 15,107,000 32,956,000     $ 15,107,000  
Right-of-use assets $ 2,085,000   2,408,000     $ 2,085,000  
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other assets         Other assets  
Lease liability $ 2,355,000   2,701,000     $ 2,355,000  
Operating Lease, Liability, Statement of Financial Position [Extensible List] Other liabilities         Other liabilities  
Total operating lease expense $ 189,000     202,000   $ 409,000 412,000
Income tax expense 0     0   0 0
Restructuring costs 0     0 $ 3,213,000 0 3,213,000
Investments In Unconsolidated Real Estate Entities              
Real Estate Properties [Line Items]              
Interest costs capitalized 1,190,000     $ 1,089,000   2,462,000 $ 2,095,000
Real Estate Investment              
Real Estate Properties [Line Items]              
Investments in real estate under development $ 87,061,000   $ 77,520,000     $ 87,061,000  
Denver Colorado              
Real Estate Properties [Line Items]              
Number of multifamily properties owned | property 2   2     2  
Nashville, TN | Views of Music City / The Crockett              
Real Estate Properties [Line Items]              
IRT Ownership Interest 50.00%         50.00%  
Austin, TX | Lakeline Station              
Real Estate Properties [Line Items]              
IRT Ownership Interest 90.00%         90.00%  
Building and Building Improvements              
Real Estate Properties [Line Items]              
Depreciable Lives (In years) 40 years         40 years  
Minimum | Equipment and Fixtures              
Real Estate Properties [Line Items]              
Depreciable Lives (In years) 5 years         5 years  
Maximum              
Real Estate Properties [Line Items]              
Operating lease term 10 years         10 years  
Maximum | Equipment and Fixtures              
Real Estate Properties [Line Items]              
Depreciable Lives (In years) 10 years         10 years