Property Acquisitions and Dispositions - Additional Information (Details)							12 Months Ended
	Jul. 25, 2023 USD ($)	Jul. 20, 2023 USD ($) store shares	Sep. 15, 2022 USD ($) store shares	Jun. 21, 2022 USD ($) store	Jun. 01, 2022 USD ($) store	May 18, 2022 USD ($) store	Dec. 31, 2024 USD ($) store shares	Dec. 31, 2023 USD ($) store shares	Dec. 31, 2022 USD ($)
Asset Acquisition [Line Items]
Repayments of debt							$ 8,724,444,000	$ 7,088,984,000	$ 4,207,700,000
Total purchase price			$ 590,000,000				$ 584,168,000	$ 147,729,000
Preferred stock, issued (in shares) | shares							0	0
Value of units issued							$ 100,414,000	$ 0
Number of stores acquired | store			106				58	14
Parcels of land acquired | store			8
Transaction costs							$ 0	$ 0	$ 1,548,000
Number of stores sold that were classified as held for sale | store							5
Number of stores sold | store							6
Number of operating stores held-for-sale | store							18
Number of stores disposed of | store				1		1
Proceeds from sale of real estate assets and investments in real estate ventures						$ 38,745,000	$ 102,484,000
Loss on sale							33,662,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Asset Acquisition [Line Items]
Gain (loss) on disposition of assets				$ 14,200,000
Operating Partnership
Asset Acquisition [Line Items]
Preferred stock, issued (in shares) | shares			619,294
Value of units issued			$ 125,000,000
Bargold
Asset Acquisition [Line Items]
Total consideration transferred					$ 179,302,000
Transaction costs					$ 1,465,000
Life Storage, Inc
Asset Acquisition [Line Items]
Repayments of debt		$ 375,000,000
Bargold
Asset Acquisition [Line Items]
Number of storage units | store					17,000
Occupancy rate					0.97
Unsecured senior notes
Asset Acquisition [Line Items]
Senior note balances							$ 8,025,000,000	$ 6,725,000,000
Unsecured senior notes | Senior Notes, Assumed From Life Storage
Asset Acquisition [Line Items]
Repayments of debt	$ 2,351,100,000
Senior note balances	$ 48,900,000
Life Storage, Inc
Asset Acquisition [Line Items]
Number of wholly owned stores acquired | store		757
Number of consolidated joint venture stores acquired | store		1
Equity interest issued conversion ratio | shares		0.895
Consideration transferred		$ 11,602,808,000
Real estate assets, estimated useful life		39 years
Tenant relationships, estimated useful life		18 months
Intangible assets, amortization period		36 months
Total purchase price		$ 12,850,127,000
Life Storage, Inc | Line of Credit
Asset Acquisition [Line Items]
Extinguishment of debt		1,160,000,000
Life Storage, Inc | Secured Debt
Asset Acquisition [Line Items]
Repayments of debt		$ 32,000,000