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Reimbursements payable to SAM under the Administrative Services Agreement

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Sale commission fees percentage of proceed from primary offering.

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Shares sold in public offering.

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Subordinated distribution value.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Related Party Transactions - Additional Information (Detail1) - USD ($)								12 Months Ended
	Feb. 01, 2024	Nov. 01, 2023	Oct. 17, 2023	Oct. 25, 2022	Jun. 01, 2022	Mar. 01, 2022	Mar. 17, 2021	Dec. 31, 2023	Dec. 31, 2022	May 02, 2023	May 01, 2022
Related Party Transaction [Line Items]
Gain resulting from acquisition of unconsolidated affiliates									$ 16,101,237
Managed REIT Platform Expenses
Related Party Transaction [Line Items]
Reimbursements payable to SAM under the Administrative Services Agreement								$ 500,000	300,000
Managed REIT Platform Revenue
Related Party Transaction [Line Items]
Percentage of revenue from tenant protection programs								0.10%
SSGT II Merger Agreement
Related Party Transaction [Line Items]
Subordinated distribution value											$ 16,100,000
Gain resulting from acquisition of unconsolidated affiliates					$ 16,100,000
Write-off of carrying value related to intangible asset					1,400,000
Change in deferred tax liability					300,000
TRS Subsidiary \| Managed REIT Platform Revenue
Related Party Transaction [Line Items]
Percentage of revenue from tenant protection programs								99.90%
Pacific Oak Holding Group
Related Party Transaction [Line Items]
Variable interest entity non-voting ownership percentage								10.00%
Managed REIT
Related Party Transaction [Line Items]
Equity method investment, ownership percentage								0.10%
Managed REIT \| TRS Subsidiary
Related Party Transaction [Line Items]
Equity method investment, ownership percentage								99.90%
Class A Common stock
Related Party Transaction [Line Items]
Sale commission fees percentage of proceed from Primary Offering								7.00%
Class T Common stock
Related Party Transaction [Line Items]
Sale commission fees percentage of proceed from Primary Offering								2.00%
Related Party \| Managed REIT Platform Revenue
Related Party Transaction [Line Items]
Receivables due from related parties								$ 6,500,000	$ 2,000,000
SmartStop Asset Management \| Strategic Transfer Agent Services, LLC
Related Party Transaction [Line Items]
Percentage of membership interest								100.00%
SST IV Advisor
Related Party Transaction [Line Items]
Write-off of carrying value related to intangible asset							$ 5,300,000
SST VI
Related Party Transaction [Line Items]
Public offering extended expiry date		Sep. 12, 2025
Offering price		$ 9.3
SST VI \| Subsequent Event
Related Party Transaction [Line Items]
Public offering extended expiry date	Mar. 17, 2025
SST VI \| Class A Common stock
Related Party Transaction [Line Items]
Offering price		$ 10
SST VI Advisory Agreement \| Pacific Oak Holding Group
Related Party Transaction [Line Items]
Variable interest entity non-voting ownership percentage						10.00%
SST VI Advisory Agreement \| Class W
Related Party Transaction [Line Items]
Percentage of offering cost without reimbursement				1.50%				1.00%
Shares sold in public offering								59,000	11,000
SST VI Advisory Agreement \| Class Z
Related Party Transaction [Line Items]
Percentage of offering cost without reimbursement			1.50%
Shares sold in public offering								5,000
Administrative Services Agreement
Related Party Transaction [Line Items]
Receivables due from related parties									$ 15,000
Administrative Services Agreement \| Managed REIT Platform Expenses
Related Party Transaction [Line Items]
Administrative service fees								$ 700,000	$ 700,000
SST VI OP \| Series A Convertible Preferred Stock
Related Party Transaction [Line Items]
Preferred stock shares redeemed										600,000
Interest payable										$ 15,100,000
Property Management Agreement
Related Party Transaction [Line Items]
Write-off of carrying value related to intangible asset					$ 600,000		$ 1,900,000