Subsequent Events - Additional Information (Detail) shares in Millions, $ in Millions											3 Months Ended
		May 08, 2023 CAD ($) StorageFacilities	May 05, 2023 USD ($) shares	May 04, 2023 CAD ($)	May 02, 2023 USD ($)	May 01, 2023 USD ($)	Apr. 13, 2023 USD ($)	Apr. 26, 2022 USD ($)	Dec. 30, 2021 USD ($)	Nov. 30, 2021 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)
Subsequent Event [Line Items]
Issuance costs											$ 1,086,148	$ 4,584,234
Purchase price	[1]										54,329,159
Gross proceeds from issuance of common stock											$ 11,006,130	$ 52,344,661
Toronto Six property portfolio Purchase Agreement [Member]
Subsequent Event [Line Items]
Purchase price		$ 212.0
Huntington Credit Facility
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity										$ 50,000,000
Maturity Date										Nov. 30, 2024	Nov. 30, 2024
Line of credit facility, amount borrowed								$ 12,900,000	$ 14,700,000	$ 22,400,000
SmartStop Delayed Draw Mezzanine Loan
Subsequent Event [Line Items]
Maturity Date											Dec. 30, 2023
Subsequent Event
Subsequent Event [Line Items]
Partners' Capital Account, Redemptions					$ 15,000,000
Subsequent Event | Class P Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering | shares			10.9
Gross proceeds from issuance of common stock			$ 104,300,000
Subsequent Event | Class A Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering | shares			2.1
Gross proceeds from issuance of common stock			$ 21,800,000
Subsequent Event | Class T Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering | shares			3.9
Gross proceeds from issuance of common stock			$ 39,300,000
Subsequent Event | Class W Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering | shares			0.5
Gross proceeds from issuance of common stock			$ 4,400,000
Subsequent Event | Vancouver Bc Property
Subsequent Event [Line Items]
Acquisition Date				May 04, 2023
Purchase price				$ 43.3
Subsequent Event | Purchase Agreement
Subsequent Event [Line Items]
Aggregate value of shares committed to purchase						$ 150,000,000
Subsequent Event | Purchase Agreement | Series B Convertible Preferred Stock
Subsequent Event [Line Items]
Sale of Stock, Consideration Received on Transaction						150,000,000
Issuance costs						$ 1,200,000
Subsequent Event | Toronto Six property portfolio Purchase Agreement [Member] | Toronto Six Property Portfolio
Subsequent Event [Line Items]
Number of self storage facilities | StorageFacilities		6
Earnest money deposits		$ 10.6
Subsequent Event | Huntington Credit Facility
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity							$ 107,600,000
Maturity Date							Nov. 30, 2025
Line of credit facility, amount borrowed							$ 12,500,000
Subsequent Event | SmartStop Delayed Draw Mezzanine Loan
Subsequent Event [Line Items]
Repaid Loan with all accrued interest					$ 50,000,000
Subsequent Event | Bank of Montreal Loan - Vancouver
Subsequent Event [Line Items]
Term loan				$ 21.6
Debt instrument, initial term				2 years
Extension option period				1 year
Debt instrument maturity date				May 04, 2025
Subsequent Event | Bank of Montreal Loan - Vancouver | CDOR
Subsequent Event [Line Items]
Interest rate term				one month
Debt instrument variable interest rate				2.50%

[1] The allocations noted above are based on a determination of the relative fair value of the total consideration provided and represent the amount paid for the transaction, including capitalized acquisition costs.