Investments - Details Regarding Acquired Communities (Details) ft² in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) community home ft²	Dec. 31, 2021 USD ($) ft² community home	Dec. 31, 2020 USD ($) ft² home community
Asset Acquisition [Line Items]
Number of communities acquired | community	4	7	0
Number of apartment homes acquired | home	1,313	1,932	0
Payments to acquire other real estate	$ 536,838	$ 771,692	$ 0
Commercial square feet | ft²	16	90	0
Avalon Flatirons
Asset Acquisition [Line Items]
Number of communities acquired | community	1
Number of apartment homes acquired | home	207
Payments to acquire other real estate	$ 95,000
Commercial square feet | ft²	16
Waterford Court
Asset Acquisition [Line Items]
Number of communities acquired | community	1
Number of apartment homes acquired | home	196
Payments to acquire other real estate	$ 69,500
Avalon Miramar Park Place
Asset Acquisition [Line Items]
Number of communities acquired | community	1
Number of apartment homes acquired | home	650
Payments to acquire other real estate	$ 295,000
Avalon Highland Creek
Asset Acquisition [Line Items]
Number of communities acquired | community	1
Number of apartment homes acquired | home	260
Payments to acquire other real estate	$ 76,700
2022 Acquisition
Asset Acquisition [Line Items]
Payments to acquire other real estate	$ 536,200
2021 Acquisition
Asset Acquisition [Line Items]
Payments to acquire other real estate		$ 724,500
2020 Acquisition
Asset Acquisition [Line Items]
Payments to acquire other real estate			$ 0