Acquisitions and Dispositions - Additional Information (Details) storage_unit in Thousands, $ in Thousands				9 Months Ended
	Jul. 25, 2023 USD ($)	Jul. 20, 2023 USD ($) shares	Jun. 01, 2022 USD ($) storage_unit	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Asset Acquisition [Line Items]
Total consideration paid for repurchase				$ 4,617,755	$ 3,341,881
Bargold
Asset Acquisition [Line Items]
Total consideration			$ 179,300
Life Storage, Inc
Asset Acquisition [Line Items]
Total consideration paid for repurchase		$ 375,000
Bargold
Asset Acquisition [Line Items]
Number of storage units | storage_unit			17
Occupancy rate			97.00%
Senior Notes | Senior Notes, Assumed From Life Storage
Asset Acquisition [Line Items]
Total consideration paid for repurchase	$ 2,351,100
Senior note balances	$ 48,900
Life Storage, Inc
Asset Acquisition [Line Items]
Equity interest issued conversion ratio | shares		0.895
Consideration transferred		$ 11,602,808
Real estate assets, estimated useful life		39 years
Tenant relationships, estimated useful life		18 months
Intangible assets, amortization period		36 months
Life Storage, Inc | Line of Credit
Asset Acquisition [Line Items]
Extinguishment of liability component		$ 1,160,000
Life Storage, Inc | Secured Debt
Asset Acquisition [Line Items]
Total consideration paid for repurchase		$ 32,000