XML 47 R33.htm IDEA: XBRL DOCUMENT
v3.24.3

LOANS HELD FOR INVESTMENT AT CARRYING VALUE - Narrative (Details) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 USD ($) loan | Dec. 31, 2023 USD ($) loan
LOANS HELD FOR INVESTMENT AT CARRYING VALUE [Abstract] |  |
Number of loans held for investments in portfolio (in loans) | loan | 6 | 0
Loans held for investments aggregate commitments | $ 121,600,000 | $ 0
Loans held at carrying value, outstanding principal | 97,547,112 | $ 0
Loans held at carrying value, outstanding principal fundings | 122,500,000 |
Loan repayments, carrying value | $ 24,900,000 |
Percentage of loans held at carrying value with floating interest rates | 72.00% | 0.00%
Interest rate floor | 4.20% |
Quoted interest rate | 4.80% |

X
- Definition LOANS HELD FOR INVESTMENT AT CARRYING VALUE [Abstract] + References No definition available. + Details
Name: | suns_LoansHeldForInvestmentAtCarryingValueAbstract
Namespace Prefix: | suns_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate commitments related to loans held for investment at carrying value. + References No definition available. + Details
Name: | suns_LoansHeldForInvestmentAtCarryingValueAggregateCommitments
Namespace Prefix: | suns_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans held for investment at carrying value, outstanding principal new fundings made during the period. + References No definition available. + Details
Name: | suns_LoansHeldForInvestmentAtCarryingValueOutstandingPrincipalNewFundings
Namespace Prefix: | suns_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Loans Held For Investment, Interest Rate Floor + References No definition available. + Details
Name: | suns_LoansHeldForInvestmentInterestRateFloor
Namespace Prefix: | suns_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loans Held For Investment, Quoted Interest Rate + References No definition available. + Details
Name: | suns_LoansHeldForInvestmentQuotedInterestRate
Namespace Prefix: | suns_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total number of loans held for investments in portfolio. + References No definition available. + Details
Name: | suns_NumberOfLoansHeldForInvestments
Namespace Prefix: | suns_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of loans held at carrying value having floating interest rates for calculation of interest. + References No definition available. + Details
Name: | suns_PercentageOfLoansHeldWithFloatingInterestRates
Namespace Prefix: | suns_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Receivable with Imputed Interest, Loan Repayments And Amortization Payments + References No definition available. + Details
Name: | suns_ReceivableWithImputedInterestLoanRepaymentsAndAmortizationPayments
Namespace Prefix: | suns_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The principal amount of the receivable or note before consideration of the discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482949/835-30-55-8 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482900/835-30-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2 + Details
Name: | us-gaap_ReceivableWithImputedInterestFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant