Subsequent Events - Additional Information (Detail) - USD ($) shares in Millions		6 Months Ended
	Aug. 06, 2025	Jun. 30, 2025	Jun. 30, 2024	Jul. 29, 2025
Subsequent Event [Line Items]
Gross proceeds from issuance of common stock		$ 15,170,192	$ 18,882,572
Subsequent Event | SmartStop Bridge Loan Agreement
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity				$ 2,000,000
Subsequent Event | Class P Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering	11.6
Gross proceeds from issuance of common stock	$ 110,600,000
Subsequent Event | Class A Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering	3.2
Gross proceeds from issuance of common stock	$ 32,400,000
Subsequent Event | Class T Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering	5.1
Gross proceeds from issuance of common stock	$ 51,100,000
Subsequent Event | Class W Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering	0.7
Gross proceeds from issuance of common stock	$ 6,700,000
Subsequent Event | Class Y Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering	5.4
Gross proceeds from issuance of common stock	$ 52,000,000
Subsequent Event | Class Z Common Stock
Subsequent Event [Line Items]
Common stock issued in connection with offering	0.6
Gross proceeds from issuance of common stock	$ 5,600,000