Investments - Details Regarding Acquired Communities (Details) ft² in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) ft² community home	Dec. 31, 2022 USD ($) ft² community home	Dec. 31, 2021 USD ($) ft² community home	Oct. 31, 2023 USD ($)
Asset Acquisition [Line Items]
Payments to acquire other real estate	$ 215,889	$ 536,838	$ 771,692
Notes Payable Maturities 2029 | Secured notes
Asset Acquisition [Line Items]
Face amount, debt instrument				$ 63,041
Stated interest rate (as a percent)				4.18%
Avalon Frisco at Main
Asset Acquisition [Line Items]
Number of communities acquired | community	1
Number of apartment homes acquired | home	360
Payments to acquire other real estate	$ 83,100
Commercial square feet | ft²	0
Avalon Mooresville
Asset Acquisition [Line Items]
Number of communities acquired | community	1
Number of apartment homes acquired | home	203
Payments to acquire other real estate	$ 52,100
Commercial square feet | ft²	0
Avalon West Plano
Asset Acquisition [Line Items]
Number of communities acquired | community	1
Number of apartment homes acquired | home	568
Payments to acquire other real estate	$ 142,000
Commercial square feet | ft²	0
2023 Acquisition
Asset Acquisition [Line Items]
Number of communities acquired | community	3
Number of apartment homes acquired | home	1,131
Payments to acquire other real estate	$ 277,200
Commercial square feet | ft²	0
2022 Acquisition
Asset Acquisition [Line Items]
Number of communities acquired | community		4
Number of apartment homes acquired | home		1,313
Payments to acquire other real estate		$ 536,200
Commercial square feet | ft²		16
2021 Acquisition
Asset Acquisition [Line Items]
Number of communities acquired | community			7
Number of apartment homes acquired | home			1,932
Payments to acquire other real estate			$ 724,500
Commercial square feet | ft²			90