Real Estate Investments - Summary of Major Components of Investments in Multifamily Properties (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Real Estate Properties [Line Items]
Land	$ 375,857	$ 375,857
Buildings and improvements	1,745,341	1,743,866
Intangible lease assets	1,376	2,576
Construction in progress	4,529	6,078
Furniture, fixtures and equipment	127,030	120,419
Real estate investment, gross	2,254,133	2,248,796
Accumulated depreciation and amortization	(309,002)	(287,096)
Multifamily Properties | Arbors on Forest Ridge
Real Estate Properties [Line Items]
Land	2,330	2,330
Buildings and improvements	11,760	11,755
Construction in progress	1
Furniture, fixtures and equipment	1,865	1,821
Real estate investment, gross	15,956	15,906
Multifamily Properties | Cutter's Point
Real Estate Properties [Line Items]
Land	3,330	3,330
Buildings and improvements	13,088	13,091
Construction in progress	1
Furniture, fixtures and equipment	7,393	7,379
Real estate investment, gross	23,812	23,800
Multifamily Properties | Silverbrook
Real Estate Properties [Line Items]
Land	4,860	4,860
Buildings and improvements	25,691	27,495
Construction in progress	196
Furniture, fixtures and equipment	5,690	5,566
Real estate investment, gross	36,437	37,921
Multifamily Properties | The Summit at Sabal Park
Real Estate Properties [Line Items]
Land	5,770	5,770
Buildings and improvements	13,885	13,882
Furniture, fixtures and equipment	2,048	1,978
Real estate investment, gross	21,703	21,630
Multifamily Properties | Courtney Cove
Real Estate Properties [Line Items]
Land	5,880	5,880
Buildings and improvements	14,345	14,350
Construction in progress	17
Furniture, fixtures and equipment	2,548	2,444
Real estate investment, gross	22,790	22,674
Multifamily Properties | Radbourne Lake
Real Estate Properties [Line Items]
Land	2,440	2,440
Buildings and improvements	22,848	22,744
Construction in progress		64
Furniture, fixtures and equipment	2,642	2,455
Real estate investment, gross	27,930	27,703
Multifamily Properties | Timber Creek
Real Estate Properties [Line Items]
Land	11,260	11,260
Buildings and improvements	13,334	13,310
Construction in progress	380	239
Furniture, fixtures and equipment	3,931	3,827
Real estate investment, gross	28,905	28,636
Multifamily Properties | Sabal Palm at Lake Buena Vista
Real Estate Properties [Line Items]
Land	7,580	7,580
Buildings and improvements	42,461	42,456
Construction in progress	10	2
Furniture, fixtures and equipment	2,874	2,758
Real estate investment, gross	52,925	52,796
Multifamily Properties | Cornerstone
Real Estate Properties [Line Items]
Land	1,500	1,500
Buildings and improvements	30,915	30,901
Construction in progress	21	21
Furniture, fixtures and equipment	3,833	3,722
Real estate investment, gross	36,269	36,144
Multifamily Properties | The Preserve at Terrell Mill
Real Estate Properties [Line Items]
Land	10,170	10,170
Buildings and improvements	53,148	53,080
Furniture, fixtures and equipment	9,414	8,997
Real estate investment, gross	72,732	72,247
Multifamily Properties | Versailles
Real Estate Properties [Line Items]
Land	6,720	6,720
Buildings and improvements	21,953	21,887
Construction in progress	2
Furniture, fixtures and equipment	4,155	4,075
Real estate investment, gross	32,830	32,682
Multifamily Properties | Seasons 704 Apartments
Real Estate Properties [Line Items]
Land	7,480	7,480
Buildings and improvements	14,725	14,644
Furniture, fixtures and equipment	2,262	2,078
Real estate investment, gross	24,467	24,202
Multifamily Properties | Madera Point
Real Estate Properties [Line Items]
Land	4,920	4,920
Buildings and improvements	18,155	18,090
Construction in progress		48
Furniture, fixtures and equipment	2,698	2,612
Real estate investment, gross	25,773	25,670
Multifamily Properties | Venue at 8651
Real Estate Properties [Line Items]
Land	2,350	2,350
Buildings and improvements	17,548	17,495
Construction in progress	322	334
Furniture, fixtures and equipment	3,914	3,843
Real estate investment, gross	24,134	24,022
Multifamily Properties | Parc500
Real Estate Properties [Line Items]
Land	3,860	3,860
Buildings and improvements	21,193	21,172
Construction in progress	5
Furniture, fixtures and equipment	4,228	4,147
Real estate investment, gross	29,286	29,179
Multifamily Properties | The Venue on Camelback
Real Estate Properties [Line Items]
Land	8,340	8,340
Buildings and improvements	38,513	38,328
Construction in progress	141	306
Furniture, fixtures and equipment	3,450	3,248
Real estate investment, gross	50,444	50,222
Multifamily Properties | Old Farm
Real Estate Properties [Line Items]
Land	11,078	11,078
Buildings and improvements	71,070	70,993
Construction in progress	174	99
Furniture, fixtures and equipment	4,031	3,902
Real estate investment, gross	86,353	86,072
Multifamily Properties | Stone Creek at Old Farm
Real Estate Properties [Line Items]
Land	3,493	3,493
Buildings and improvements	19,718	19,714
Construction in progress	2	2
Furniture, fixtures and equipment	936	899
Real estate investment, gross	24,149	24,108
Multifamily Properties | Hollister Place
Real Estate Properties [Line Items]
Land	2,782	2,782
Buildings and improvements	21,202	21,196
Construction in progress	1,468	1,308
Furniture, fixtures and equipment	2,793	2,739
Real estate investment, gross	28,245	28,025
Multifamily Properties | Rockledge Apartments
Real Estate Properties [Line Items]
Land	17,451	17,451
Buildings and improvements	97,417	97,374
Furniture, fixtures and equipment	6,405	5,968
Real estate investment, gross	121,273	120,793
Multifamily Properties | Atera Apartments
Real Estate Properties [Line Items]
Land	22,371	22,371
Buildings and improvements	38,691	36,857
Construction in progress	7	1,824
Furniture, fixtures and equipment	2,545	2,384
Real estate investment, gross	63,614	63,436
Multifamily Properties | Crestmont Reserve
Real Estate Properties [Line Items]
Land	4,124	4,124
Buildings and improvements	21,068	21,067
Furniture, fixtures and equipment	1,558	1,515
Real estate investment, gross	26,750	26,706
Multifamily Properties | Brandywine I & II
Real Estate Properties [Line Items]
Land	6,237	6,237
Buildings and improvements	73,769	73,737
Furniture, fixtures and equipment	5,385	5,160
Real estate investment, gross	85,391	85,134
Multifamily Properties | Bella Vista
Real Estate Properties [Line Items]
Land	10,942	10,942
Buildings and improvements	37,310	37,193
Construction in progress	6	51
Furniture, fixtures and equipment	2,865	2,687
Real estate investment, gross	51,123	50,873
Multifamily Properties | The Enclave
Real Estate Properties [Line Items]
Land	11,046	11,046
Buildings and improvements	30,515	30,469
Construction in progress		11
Furniture, fixtures and equipment	2,500	2,403
Real estate investment, gross	44,061	43,929
Multifamily Properties | The Heritage
Real Estate Properties [Line Items]
Land	6,835	6,835
Buildings and improvements	35,131	35,011
Construction in progress	26	68
Furniture, fixtures and equipment	2,562	2,386
Real estate investment, gross	44,554	44,300
Multifamily Properties | Summers Landing
Real Estate Properties [Line Items]
Land	1,798	1,798
Buildings and improvements	18,447	18,433
Construction in progress	1	1
Furniture, fixtures and equipment	821	790
Real estate investment, gross	21,067	21,022
Multifamily Properties | Residences at Glenview Reserve
Real Estate Properties [Line Items]
Land	3,367	3,367
Buildings and improvements	42,339	42,306
Furniture, fixtures and equipment	2,602	2,366
Real estate investment, gross	48,308	48,039
Multifamily Properties | Residences at West Place
Real Estate Properties [Line Items]
Land	3,345	3,345
Buildings and improvements	52,369	52,310
Furniture, fixtures and equipment	1,855	1,591
Real estate investment, gross	57,569	57,246
Multifamily Properties | Avant at Pembroke Pines
Real Estate Properties [Line Items]
Land	48,434	48,434
Buildings and improvements	276,632	275,968
Construction in progress	1,056	1,414
Furniture, fixtures and equipment	12,425	11,611
Real estate investment, gross	338,547	337,427
Multifamily Properties | Arbors of Brentwood
Real Estate Properties [Line Items]
Land	6,346	6,346
Buildings and improvements	56,063	56,040
Furniture, fixtures and equipment	2,414	2,235
Real estate investment, gross	64,823	64,621
Multifamily Properties | Fairways at San Marcos
Real Estate Properties [Line Items]
Land	10,993	10,993
Buildings and improvements	72,922	72,920
Construction in progress	297	2
Furniture, fixtures and equipment	2,005	1,989
Real estate investment, gross	86,217	85,904
Multifamily Properties | Torreyana Apartments
Real Estate Properties [Line Items]
Land	23,824	23,824
Buildings and improvements	43,771	43,700
Construction in progress	3	25
Furniture, fixtures and equipment	1,533	1,371
Real estate investment, gross	69,131	68,920
Multifamily Properties | The Verandas at Lake Norman
Real Estate Properties [Line Items]
Land	9,510	9,510
Buildings and improvements	52,800	52,884
Construction in progress	115	6
Furniture, fixtures and equipment	857	650
Real estate investment, gross	63,282	63,050
Multifamily Properties | Bloom
Real Estate Properties [Line Items]
Land	23,805	23,805
Buildings and improvements	82,595	82,545
Construction in progress	19	16
Furniture, fixtures and equipment	3,007	2,697
Real estate investment, gross	109,426	109,063
Multifamily Properties | Creekside At Matthews
Real Estate Properties [Line Items]
Land	11,515	11,515
Buildings and improvements	45,337	45,271
Construction in progress		18
Furniture, fixtures and equipment	1,046	756
Real estate investment, gross	57,898	57,560
Multifamily Properties | Bella Solara
Real Estate Properties [Line Items]
Land	12,605	12,605
Buildings and improvements	53,440	53,415
Construction in progress	22	24
Furniture, fixtures and equipment	2,068	1,854
Real estate investment, gross	68,135	67,898
Multifamily Properties | Six Forks Station
Real Estate Properties [Line Items]
Land	11,357	11,357
Buildings and improvements	61,517	62,129
Intangible lease assets		1,200
Construction in progress	218	195
Furniture, fixtures and equipment	1,045	748
Real estate investment, gross	74,137	75,629
Multifamily Properties | High House at Cary
Real Estate Properties [Line Items]
Land	23,809	23,809
Buildings and improvements	67,656	67,654
Intangible lease assets	1,376	1,376
Construction in progress	19
Furniture, fixtures and equipment	827	768
Real estate investment, gross	93,687	93,607
Multifamily Properties | Operating Properties
Real Estate Properties [Line Items]
Real estate investment, gross	2,254,133	2,248,796
Accumulated depreciation and amortization	(309,002)	(287,096)
Total Net Operating Real Estate Investments	1,945,131	1,961,700
Multifamily Properties | Operating Properties | Intangible Lease Assets
Real Estate Properties [Line Items]
Real estate investment, gross	1,376	2,576
Accumulated depreciation and amortization	(917)	(1,029)
Total Net Operating Real Estate Investments	459	1,547
Multifamily Properties | Operating Properties | Land
Real Estate Properties [Line Items]
Real estate investment, gross	375,857	375,857
Total Net Operating Real Estate Investments	375,857	375,857
Multifamily Properties | Operating Properties | Buildings and Improvements
Real Estate Properties [Line Items]
Real estate investment, gross	1,745,341	1,743,866
Accumulated depreciation and amortization	(218,292)	(203,125)
Total Net Operating Real Estate Investments	1,527,049	1,540,741
Multifamily Properties | Operating Properties | Construction in Progress
Real Estate Properties [Line Items]
Real estate investment, gross	4,529	6,078
Total Net Operating Real Estate Investments	4,529	6,078
Multifamily Properties | Operating Properties | Furniture, Fixtures, and Equipment
Real Estate Properties [Line Items]
Real estate investment, gross	127,030	120,419
Accumulated depreciation and amortization	(89,793)	(82,942)
Total Net Operating Real Estate Investments	$ 37,237	$ 37,477