Summary of Significant Accounting Policies - Additional Information (Detail)			3 Months Ended		6 Months Ended		12 Months Ended
	Aug. 07, 2024 $ / shares shares	Nov. 01, 2023 $ / shares shares	Jun. 30, 2025 USD ($) Contract $ / shares	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) Contract Segment $ / shares	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of contracts deemed to be in VIEs | Contract			0		0
Payments to acquire intangible assets					$ 0	$ 0
Property acquisitions					0	0
Business acquisition, transaction costs			$ 147,714	$ 185,431	269,610	417,895
Impairment losses recognized					0	0
Advertising costs			700,000	600,000	$ 1,600,000	1,200,000
Estimated average rental period					18 months
Gross amounts of lease intangibles			9,800,000		$ 9,800,000		$ 9,500,000
Accumulated amortization of lease intangibles			9,800,000		9,800,000		9,500,000
Debt issuance cost amortization expense			200,000	300,000	700,000	600,000
Accumulated amortization of debt issuance costs			400,000		$ 400,000		1,100,000
Maximum period for reimbursement of offering cost					60 days
Maximum offering cost rate					15.00%
Unpaid dealer manager servicing fees					$ 0
Dealer manager servicing fee payable			950,000
Minimum percentage of ordinary taxable income to be distributed to stockholders					90.00%
Allowance for doubtful accounts			41,000		$ 41,000		55,000
Uncertain tax benefits/positions			0		$ 0		0
Number of reportable segments | Segment					1
Assets			539,689,948		$ 539,689,948		529,129,280
Revenues			7,670,640	6,996,388	15,019,998	13,613,299
Units converted | shares	0
Current tax provision					0		0
Income tax penalties and interest expense					$ 0		0
Open tax year					2021 2022 2023 2024
Sponsor Funding Agreement
Summary Of Significant Accounting Policies [Line Items]
Net asset value per share | $ / shares	$ 10
Canada | Self Storage
Summary Of Significant Accounting Policies [Line Items]
Assets			294,600,000		$ 294,600,000		278,200,000
Revenues			4,300,000	3,800,000	$ 8,300,000	7,300,000
Rental Income | Geographic Concentration Risk | Arizona
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage					15.00%
Rental Income | Geographic Concentration Risk | Florida
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage					12.00%
Rental Income | Geographic Concentration Risk | Canada
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage					49.00%
Distribution
Summary Of Significant Accounting Policies [Line Items]
Redemption total			$ 3,300,000	$ 1,200,000	$ 3,300,000	1,200,000
Redemption fulfilled					200,000	800,000
Redemption payable					$ 3,100,000	$ 400,000
Private Offering Dealer Manager Agreement
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from private offering					6.00%
Maximum dealer manager commission fees percentage of proceed from private offering					3.00%
Underwriting compensation					10.00%
Maximum percentage other non-accountable expenses					3.00%
Class W Common Stock
Summary Of Significant Accounting Policies [Line Items]
Percentage of offering cost without reimbursement					1.00%
Net asset value per share | $ / shares	10
Class W Common Stock | Dealer Manager
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering					1.50%
Percentage of gross proceeds from sale of shares					10.00%
Maximum dealer manager servicing fee percentage of proceeds from Primary Offering					9.00%
Class W Common Stock | Dealer Manager Servicing Fees
Summary Of Significant Accounting Policies [Line Items]
Monthly servicing fee accrual description					accrued daily in an amount equal to 1/365th of 0.5% of the purchase price per share
Class A Common Stock
Summary Of Significant Accounting Policies [Line Items]
Net asset value per share | $ / shares	$ 10
Units converted | shares	0	0
Class A Common Stock | Sponsor Funding Agreement
Summary Of Significant Accounting Policies [Line Items]
Net asset value per share | $ / shares		$ 10
Class A Common Stock | Dealer Manager
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering					6.00%
Maximum dealer manager commission fee percentage of proceeds from Primary Offering					3.00%
Percentage of gross proceeds from sale of shares					10.00%
Class T Common Stock
Summary Of Significant Accounting Policies [Line Items]
Net asset value per share | $ / shares	$ 10
Class T Common Stock | Dealer Manager
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering					3.00%
Maximum dealer manager commission fee percentage of proceeds from Primary Offering					3.00%
Percentage of gross proceeds from sale of shares					10.00%
Class T Common Stock | Stockholder Servicing Fees
Summary Of Significant Accounting Policies [Line Items]
Monthly servicing fee accrual description					accrued daily in an amount equal to 1/365th of 1% of the purchase price per share
Class Z Common Stock
Summary Of Significant Accounting Policies [Line Items]
Price per share | $ / shares		9.3
Net asset value per share | $ / shares	10
Class Z Common Stock | Dealer Manager
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering					1.50%
Percentage of gross proceeds from sale of shares					10.00%
Maximum dealer manager servicing fee percentage of proceeds from Primary Offering					9.00%
Class Z Common Stock | Dealer Manager Servicing Fees
Summary Of Significant Accounting Policies [Line Items]
Monthly servicing fee accrual description					accrued daily in an amount equal to 1/365th of 0.5% of the purchase price per share
Class Y Common Stock
Summary Of Significant Accounting Policies [Line Items]
Price per share | $ / shares		$ 9.3
Net asset value per share | $ / shares	$ 10
Class Y Common Stock | Sponsor Funding Agreement
Summary Of Significant Accounting Policies [Line Items]
Percentage of upfront sales commission		3.00%
Percentage of upfront dealer manager fee		3.00%
Class Y Common Stock | Dealer Manager
Summary Of Significant Accounting Policies [Line Items]
Maximum sale commission fees percentage of proceed from Primary Offering					3.00%
Maximum dealer manager commission fee percentage of proceeds from Primary Offering					3.00%
Percentage of gross proceeds from sale of shares					10.00%
Class Y Common Stock | Stockholder Servicing Fees
Summary Of Significant Accounting Policies [Line Items]
Monthly servicing fee accrual description					accrued daily in an amount equal to 1/365th of 1% of the purchase price per share
Class Y Shares and Class Z Shares | Sponsor Funding Agreement
Summary Of Significant Accounting Policies [Line Items]
Percentage of organization and offering expenses		1.00%
Price per share | $ / shares		$ 9.3	$ 10		$ 10
Minimum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life					3 years
Maximum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life					5 years
Maximum offering cost rate					15.00%
Carry Forward of Non-capital Losses
Summary Of Significant Accounting Policies [Line Items]
Uncertain tax benefits/positions			$ 8,600,000		$ 8,600,000		$ 6,700,000