Business acquisition remaining percentage of voting interests acquired

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Number of development real estate properties.

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Number of land parcels developed into self storage facilities.

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Number of operating real estate properties.

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Number of operating self storage property.

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- Definition

Number of real estate ventures.

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No definition available.

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- Definition

Number Of Self Storage Facilities

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Number of self storage real estate joint ventures.

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- Definition

Number of self storage units.

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- Definition

Number of shares exchanged in connection with merger.

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- Definition

Number of states located for self storage facilities.

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- Definition

Occupancy percentage of real estate properties.

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No definition available.

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- Definition

Real estate facilities acquisitions

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The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties.

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- Definition

Value of input used to measure alternative investment.

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- Definition

Short-Term financing which is expected to be paid back relatively quickly, such as by a subsequent longer-term loan. Also called swing loan or bridge financing.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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- Definition

Description of basis for conversion of convertible common stock.

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Face amount or stated value per share of common stock.

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Fair value of equity issued in a business combination.

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Net rentable area for properties owned.

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Number of shares of stock issued during the period pursuant to acquisitions.

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Real Estate Facilities - Additional Information (Detail) $ / shares in Units, shares in Millions															9 Months Ended	12 Months Ended
	Jul. 05, 2023 USD ($)	Dec. 01, 2022 REALESTATEVENTURE	Jun. 28, 2022 USD ($)	Jun. 01, 2022 USD ($) ft² RealEstateVenture State STORAGEPROPERTY StorageFacility StorageUnit LANDPARCEL $ / shares shares	May 17, 2022 USD ($)	May 10, 2022 USD ($)	Feb. 08, 2022 USD ($)	Dec. 30, 2021 StorageFacility	Mar. 17, 2021 StorageFacility shares	Mar. 17, 2021 StorageFacility	Mar. 17, 2021 StorageFacility StorageUnit	Mar. 17, 2021 RealEstateVenture StorageFacility	Mar. 17, 2021 StorageFacility REALESTATEVENTURE	Nov. 10, 2020 USD ($) REALESTATEVENTURE StorageFacility State	Sep. 30, 2023 USD ($) StorageFacility REALESTATEVENTURE State $ / shares	Dec. 31, 2022 USD ($) Property REALESTATEVENTURE StorageFacility State $ / shares	Dec. 31, 2021 $ / shares	Mar. 17, 2021 State	Mar. 17, 2021 ft²	Mar. 17, 2021	Mar. 17, 2021 STORAGEPROPERTY
Business Acquisition [Line Items]
Number of self storage facilities \| StorageFacility								2							154	153
Number of states located for self storage facilities \| State															19	19
Consideration transferred																$ 51,200,000
Acquisitions															$ 23,696,536
Minority and Marketability Discount
Business Acquisition [Line Items]
Alternative investment, measurement input				0.06										0.06
Canada
Business Acquisition [Line Items]
Number of self storage units \| RealEstateVenture				7,740
Consideration transferred															$ 7,700,000
SST IV Merger Agreement
Business Acquisition [Line Items]
Number of self storage facilities \| StorageFacility										24
Number of states located for self storage facilities \| State																		9
Number of self storage units \| StorageUnit											18,000
Number of operating self storage facilities \| Property																2
Acquisition Costs, Period Cost														$ 8,400,000
Percentage of voting membership interest																				50.00%
Net rentable area, primarily self storage space \| ft²																			2,000,000
SST IV Merger Agreement \| Canada
Business Acquisition [Line Items]
Number of self storage facilities \| StorageFacility														24
Number of states located for self storage facilities \| State														9
Number of self storage real estate joint ventures \| REALESTATEVENTURE														6
Number of operating self storage facilities									3	3	3	3	3	3		5					3
Number of parcels of land in various stages of development into self storage facilities									3	3	3	3	3	3		1					3
Number of unconsolidated real estate ventures												6	6
Strategic Storage Trust IV, Inc.
Business Acquisition [Line Items]
Consideration transferred														$ 286,028,173
Algonquin Property [Member]
Business Acquisition [Line Items]
Consideration transferred							$ 19,000,000
Occupancy percentage							72.40%
SSGT II Merger Agreement
Business Acquisition [Line Items]
Conversion of right to receive shares, description				converted into the right to receive 0.9118 shares of our Class A Shares
Number of self storage facilities \| StorageFacility				10
Number of states located for self storage facilities \| State				7
Number of self storage units \| StorageUnit				7,740
Number of operating self storage facilities \| Property																1
Acquisition Costs, Period Cost				$ 2,000,000
Consideration transferred	$ 15,500,000			$ 261,158,513
Common Stock, Par or Stated Value Per Share \| $ / shares				$ 0.001
Percentage of voting membership interest				50.00%
Number of operating self storage property \| STORAGEPROPERTY				1
Number of land parcels developed into self storage facilities \| LANDPARCEL				2
Remaining percentage of membership interest				50.00%
Net rentable area, primarily self storage space \| ft²				853,900
Bridge Loan	10,400,000
Number of unconsolidated real estate ventures \| RealEstateVenture				3
Intangible asset	8,000,000			$ 8,000,000
SSGT II Merger Agreement \| Canada
Business Acquisition [Line Items]
Number of self storage real estate joint ventures \| REALESTATEVENTURE		3												6,000,000	3
Number of operating self storage facilities \| REALESTATEVENTURE															2	1
Number of parcels of land in various stages of development into self storage facilities \| REALESTATEVENTURE															1	2
Number of land parcels developed into self storage facilities \| LANDPARCEL				1
Acquisition of Self Storage Facility
Business Acquisition [Line Items]
Net rentable area, primarily self storage space \| ft²				853,900
Sacramento Property [Member]
Business Acquisition [Line Items]
Consideration transferred						$ 25,400,000
Occupancy percentage						90.30%
St. Johns Property [Member]
Business Acquisition [Line Items]
Consideration transferred					$ 16,300,000
Occupancy percentage					94.60%
Aurora Property [Member]
Business Acquisition [Line Items]
Consideration transferred			$ 12,000,000
Occupancy percentage			82.20%
San Gabriel Property [Member]
Business Acquisition [Line Items]
Acquisitions	$ 23,700,000
SST IV Common Stock
Business Acquisition [Line Items]
Conversion of right to receive shares, description														converted into the right to receive 2.1875 Class A Shares
SST IV Common Stock \| SST IV Merger Agreement
Business Acquisition [Line Items]
Number of shares exchanged in connection with merger \| shares									10.6
Class A Common stock
Business Acquisition [Line Items]
Common Stock, Par or Stated Value Per Share \| $ / shares															$ 0.001	$ 0.001	$ 0.001
Class A Common stock \| SST IV Merger Agreement
Business Acquisition [Line Items]
Issuance of common stock in connection with SST IV Merger (in shares) \| shares									23.1
Class A Common stock \| Strategic Storage Trust IV, Inc.
Business Acquisition [Line Items]
Common stock issued														$ 23,100,000
Class A Common stock \| SSGT II Merger Agreement
Business Acquisition [Line Items]
Common stock issued				$ 11,500,000
Issuance of common stock in connection with SST IV Merger (in shares) \| shares				11.5
Number of shares exchanged in connection with merger \| shares				12.7