Debt - Summary of Mortgage Debt Nonrecourse to Company and Encumbers Multifamily Properties (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Mortgages payable, net	$ 1,276,240	$ 1,276,285
Mortgages Payable | Operating Properties
Debt Instrument [Line Items]
Outstanding Principal	1,280,765
Fair market value adjustment	1,009
Deferred financing costs, net of accumulated amortization	(5,534)
Mortgages payable, net	$ 1,276,240
Mortgages Payable | Arbors on Forest Ridge | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 13,130
Interest Rate	2.13%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Cutter's Point | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 16,640
Interest Rate	2.13%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Silverbrook | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 30,590
Interest Rate	2.13%
Maturity Date	Jul. 01, 2024
Mortgages Payable | The Summit at Sabal Park | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 13,560
Interest Rate	2.07%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Courtney Cove | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 13,680
Interest Rate	2.07%
Maturity Date	Jul. 01, 2024
Mortgages Payable | The Preserve at Terrell Mill | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 42,480
Interest Rate	2.07%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Versailles | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 23,880
Interest Rate	2.07%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Seasons 704 Apartments | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 17,460
Interest Rate	2.07%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Madera Point | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 15,150
Interest Rate	2.07%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Venue at 8651 | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 13,734
Interest Rate	2.23%
Maturity Date	Jul. 01, 2024
Mortgages Payable | The Venue on Camelback | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 28,093
Interest Rate	2.13%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Old Farm | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 52,886
Interest Rate	2.13%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Stone Creek at Old Farm | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 15,274
Interest Rate	2.13%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Timber Creek | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 24,100
Interest Rate	1.71%
Maturity Date	Oct. 01, 2025
Mortgages Payable | Radbourne Lake | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 20,000
Interest Rate	1.74%
Maturity Date	Oct. 01, 2025
Mortgages Payable | Sabal Palm at Lake Buena Vista | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 42,100
Interest Rate	1.75%
Maturity Date	Sep. 01, 2025
Mortgages Payable | Cornerstone | Debt With Fixed Interest Rate
Debt Instrument [Line Items]
Term (months)	120 months
Outstanding Principal	$ 20,672
Interest Rate	4.24%
Maturity Date	Mar. 01, 2023
Mortgages Payable | Parc500 | Debt With Fixed Interest Rate
Debt Instrument [Line Items]
Term (months)	120 months
Outstanding Principal	$ 14,590
Interest Rate	4.49%
Maturity Date	Aug. 01, 2025
Mortgages Payable | Hollister Place | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 14,811
Interest Rate	1.79%
Maturity Date	Oct. 01, 2025
Mortgages Payable | Rockledge Apartments | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 68,100
Interest Rate	2.02%
Maturity Date	Jul. 01, 2024
Mortgages Payable | Atera Apartments | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 29,500
Interest Rate	1.93%
Maturity Date	Nov. 01, 2024
Mortgages Payable | Crestmont Reserve | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 12,061
Interest Rate	1.63%
Maturity Date	Oct. 01, 2025
Mortgages Payable | Brandywine I & II | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 43,835
Interest Rate	1.63%
Maturity Date	Oct. 01, 2025
Mortgages Payable | Bella Vista | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 29,040
Interest Rate	1.77%
Maturity Date	Feb. 01, 2026
Mortgages Payable | The Enclave | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 25,322
Interest Rate	1.77%
Maturity Date	Feb. 01, 2026
Mortgages Payable | The Heritage | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 24,625
Interest Rate	1.77%
Maturity Date	Feb. 01, 2026
Mortgages Payable | Summers Landing | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 10,109
Interest Rate	1.63%
Maturity Date	Oct. 01, 2025
Mortgages Payable | Residences at Glenview Reserve | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 26,270
Interest Rate	1.89%
Maturity Date	Oct. 01, 2025
Mortgages Payable | Residences at West Place | Debt With Fixed Interest Rate
Debt Instrument [Line Items]
Term (months)	120 months
Outstanding Principal	$ 33,817
Interest Rate	4.24%
Maturity Date	Oct. 01, 2028
Mortgages Payable | Avant at Pembroke Pines | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 177,100
Interest Rate	1.88%
Maturity Date	Sep. 01, 2026
Mortgages Payable | Arbors of Brentwood | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 34,237
Interest Rate	1.88%
Maturity Date	Oct. 01, 2026
Mortgages Payable | Torreyana Apartments | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 37,400
Interest Rate	2.15%
Maturity Date	Dec. 01, 2026
Mortgages Payable | Fairways at San Marcos | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 46,464
Interest Rate	2.29%
Maturity Date	Dec. 01, 2027
Mortgages Payable | Bloom | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 58,850
Interest Rate	2.15%
Maturity Date	Dec. 01, 2026
Mortgages Payable | The Verandas at Lake Norman | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 34,925
Interest Rate	2.01%
Maturity Date	Jul. 01, 2028
Mortgages Payable | Bella Solara | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 36,575
Interest Rate	2.15%
Maturity Date	Dec. 01, 2026
Mortgages Payable | Creekside At Matthews | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 31,900
Interest Rate	2.01%
Maturity Date	Jul. 01, 2028
Mortgages Payable | Six Forks Station | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	120 months
Outstanding Principal	$ 41,180
Interest Rate	1.87%
Maturity Date	Oct. 01, 2031
Mortgages Payable | High House at Cary | Debt With Floating Interest Rate
Debt Instrument [Line Items]
Term (months)	84 months
Outstanding Principal	$ 46,625
Interest Rate	2.17%
Maturity Date	Jan. 01, 2029