Summary of Significant Accounting Policies - Additional Information (Detail)			3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 20, 2026 $ / shares shares	Nov. 01, 2023 $ / shares shares	Jun. 30, 2026 USD ($) Contract $ / shares	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) Contract Segment $ / shares	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	May 30, 2025 $ / shares
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			$ 624,762	$ 147,714	863,841	269,610
Impairment losses recognized					0	0
Advertising costs			700,000	700,000	$ 1,300,000	1,600,000
Estimated average rental period					18 months
Gross amounts of lease intangibles			9,600,000		$ 9,600,000		$ 9,800,000
Accumulated amortization of lease intangibles			9,600,000		9,600,000		9,800,000
Debt issuance cost amortization expense			200,000	200,000	300,000	700,000
Accumulated amortization of debt issuance costs			1,100,000		$ 1,100,000		800,000
Maximum period for reimbursement of offering cost					60 days
Maximum offering cost rate					15.00%
Dealer manager servicing fee payable				950,000
Unpaid dealer manager servicing fees					$ 0
Minimum percentage of ordinary taxable income to be distributed to stockholders					90.00%
Allowance for doubtful accounts			25,000		$ 25,000		46,000
Uncertain tax benefits/positions			0		$ 0		0
Number of reportable segments | Segment					1
Assets			513,822,070		$ 513,822,070		534,441,184
Revenues			8,043,277	7,670,640	15,868,090	15,019,998
Units converted | shares	0
Current tax provision					0		0
Income taxes, paid					0		0
Income tax penalties and interest expense					$ 0		0
Open tax year					2022 2023 2024 2025
Recent tax legislation					Effective July 4, 2025, the One Big Beautiful Bill Act (“OBBBA”) was signed into law. Certain provisions of OBBBA modified U.S. tax law and impact us and our stockholders. Among other changes, this legislation (i) permanently extended the 20% deduction for “qualified REIT dividends” for individuals and other non-corporate taxpayers under Section 199A of the Code, (ii) permanently reinstated 100% bonus depreciation for certain property acquired after January 19, 2025, (iii) increased the percentage limit under the REIT asset test applicable to taxable REIT subsidiaries from 20% to 25% for taxable years beginning after December 31, 2025, and (iv) increases the base on which the 30% interest deduction limit under Section 163(j) of the Code applies by excluding depreciation, amortization and depletion from the definition of “adjusted taxable income” for taxable years beginning after December 31, 2024. The provisions of OBBBA did not have a material impact to our Consolidated Financial Statements.
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			281,900,000		$ 281,900,000		293,400,000
Revenues			4,500,000	4,300,000	$ 8,800,000	8,300,000
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					11.00%
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			$ 200,000	$ 3,300,000	$ 200,000	3,300,000
Redemption fulfilled					100,000	200,000
Redemption payable					$ 100,000	$ 3,100,000
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 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 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 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			$ 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			$ 10,400,000		$ 10,400,000		$ 9,700,000