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Investments - Schedule of Real Estate Acquisitions (Details) $ in Thousands	1 Months Ended	3 Months Ended			9 Months Ended
	Apr. 30, 2025 USD ($) home community	Sep. 30, 2025 USD ($) home	Jun. 30, 2025 USD ($) home community	Mar. 31, 2025 USD ($) home	Sep. 30, 2025 USD ($) home	Sep. 30, 2024 USD ($)
Asset Acquisition [Line Items]
Payments to acquire other real estate					$ 643,975	$ 278,363
Avalon Hill Country
Asset Acquisition [Line Items]
Apartment homes acquired | home				554
Payments to acquire other real estate				$ 136,000
Avalon Wolf Ranch
Asset Acquisition [Line Items]
Apartment homes acquired | home				303
Payments to acquire other real estate				$ 51,000
eaves Twin Creeks
Asset Acquisition [Line Items]
Apartment homes acquired | home			216
Payments to acquire other real estate			$ 44,784
Avalon Benbrook
Asset Acquisition [Line Items]
Apartment homes acquired | home			301
Payments to acquire other real estate			$ 60,194
Avalon Castle Hills
Asset Acquisition [Line Items]
Apartment homes acquired | home			276
Payments to acquire other real estate			$ 65,491
Avalon Frisco
Asset Acquisition [Line Items]
Apartment homes acquired | home			330
Payments to acquire other real estate			$ 80,419
Avalon Frisco North
Asset Acquisition [Line Items]
Apartment homes acquired | home			349
Payments to acquire other real estate			$ 88,606
eaves North Dallas
Asset Acquisition [Line Items]
Apartment homes acquired | home			372
Payments to acquire other real estate			$ 76,085
Avalon at Palisades
Asset Acquisition [Line Items]
Apartment homes acquired | home		274
Payments to acquire other real estate		$ 72,300
Avalon Coconut Creek
Asset Acquisition [Line Items]
Apartment homes acquired | home		270
Payments to acquire other real estate		$ 99,000
eaves Redmond Campus II
Asset Acquisition [Line Items]
Apartment homes acquired | home		40
Payments to acquire other real estate		$ 15,650
2025 Acquisition
Asset Acquisition [Line Items]
Apartment homes acquired | home					3,285
Payments to acquire other real estate					$ 789,529
DownREIT Partnership
Asset Acquisition [Line Items]
Apartment homes acquired | home	1,844
Payments to acquire other real estate	$ 193,000
Number of communities acquired | community	6		6

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 15
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480123/805-50-15-3

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

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