Represents the number of classes in limited partners' ownership units.

No definition available.

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- Definition

Ratio applied to the conversion of limited partners' ownership units into shares.

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
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- Definition

Number of shares of stock issued as of the balance sheet date attributable to Non-controlling interests.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
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Period Type:	instant

- Definition

Number of new units issued during the period.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480100/505-10-S45-8

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from the additional capital contribution to the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_OwnershipAxis=sdir_SwifIiOperatingPartnershipLpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LimitedPartnersCapitalAccountByClassAxis=sdir_CommonClassPOpUnitsMember
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Data Type:	na
Balance Type:
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- Details

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- Details

Name:	us-gaap_LimitedPartnersCapitalAccountByClassAxis=sdir_AllSharesExceptClassPOpUnitsAndClassPxOpUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
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EQUITY (DEFICIT) - Limited Partnership Units of the Operating Partnership (Details)	6 Months Ended		44 Months Ended
	Jun. 30, 2026 USD ($) shares	Jun. 30, 2025 USD ($)	Feb. 14, 2025 USD ($) shares	Dec. 31, 2025 shares
SWIF II OP Limited Partnership Units
Number of classes \| $	10
Proceeds from issuance of common shares \| $	$ 120,000	$ 7,071,143
Class P OP units and Class PX OP units
SWIF II OP Limited Partnership Units
Proceeds from issuance of common shares \| $			$ 22,623,000
Class P OP units and Class PX OP units \| Operating Partnership
SWIF II OP Limited Partnership Units
Operating partnership percentage of ownership	11.04%			11.09%
Non controlling interest shares \| shares	1,285,664			1,349,716
Class P OP Units
SWIF II OP Limited Partnership Units
Common units issued (in units) \| shares			2,034,853
Class PX OP Units
SWIF II OP Limited Partnership Units
Common units issued (in units) \| shares			216,561
All shares, except Class P OP Units and Class PX OP Units
SWIF II OP Limited Partnership Units
Conversion ratio	1
Class P OP Units and Class PX OP Units for Class I Shares and Class IX Shares
SWIF II OP Limited Partnership Units
Conversion ratio	1