v3.25.4

Investments - Scheduled Loan Receivable Maturities (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Scheduled loan receivable maturities
2026	$ 27,022
2027	9,261
2028	11,896
2029	12,950
2030	203,862
Thereafter	323,882
Total principal payments	588,873
Scheduled Principal Payments
Scheduled loan receivable maturities
2026	5,960
2027	9,261
2028	10,447
2029	11,450
2030	8,298
Thereafter	84,786
Total principal payments	130,202
Balloon Payments
Scheduled loan receivable maturities
2026	21,062
2027	0
2028	1,449
2029	1,500
2030	195,564
Thereafter	239,096
Total principal payments	$ 458,671

Amount of loans receivable maturing after the fifth full fiscal year following the date of the most recent balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	ck0001538990_LoansReceivableMaturitiesRepaymentsOfPrincipalAfterFifthFullFiscalYear
Namespace Prefix:	ck0001538990_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of loans receivable maturing within the fifth full fiscal year following the date of the most recent balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	ck0001538990_LoansReceivableMaturitiesRepaymentsOfPrincipalFifthFullFiscalYear
Namespace Prefix:	ck0001538990_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of loans receivable maturing within the first full fiscal year following the date of the most recent balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	ck0001538990_LoansReceivableMaturitiesRepaymentsOfPrincipalFirstFullFiscalYear
Namespace Prefix:	ck0001538990_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of loans receivable maturing within the fourth full fiscal year following the date of the most recent balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	ck0001538990_LoansReceivableMaturitiesRepaymentsOfPrincipalFourthFullFiscalYear
Namespace Prefix:	ck0001538990_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of loans receivable maturing within the second full fiscal year following the date of the most recent balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	ck0001538990_LoansReceivableMaturitiesRepaymentsOfPrincipalSecondFullFiscalYear
Namespace Prefix:	ck0001538990_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of loans receivable maturing within the third full fiscal year following the date of the most recent balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	ck0001538990_LoansReceivableMaturitiesRepaymentsOfPrincipalThirdFullFiscalYear
Namespace Prefix:	ck0001538990_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Scheduled loan receivable maturities.

+ References

No definition available.

+ Details

Name:	ck0001538990_ScheduledLoanReceivableMaturitiesLineItems
Namespace Prefix:	ck0001538990_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

This is the sum of principal amount outstanding for both securitized and unsecuritized loans of all types.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Subparagraph (a)
-Paragraph 4
-SubTopic 20
-Topic 860
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4

+ Details

Name:	us-gaap_PrincipalAmountOutstandingOnLoansManagedAndSecuritized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=ck0001538990_ScheduledPrincipalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=ck0001538990_BalloonPaymentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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