Represents information pertaining to asset coverage ratio under debt instrument.

No definition available.

Name:	spcbdc_DebtInstrumentAssetCoverageRatio
Namespace Prefix:	spcbdc_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents debt instrument, basis spread on variable rate adjustment.

+ References

No definition available.

+ Details

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Namespace Prefix:	spcbdc_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument interest coverage ratio.

+ References

No definition available.

+ Details

Name:	spcbdc_DebtInstrumentInterestCoverageRatio
Namespace Prefix:	spcbdc_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit before prepaid loan structure fees.

+ References

No definition available.

+ Details

Name:	spcbdc_LongTermLineOfCreditBeforePrepaidLoanStructureFees
Namespace Prefix:	spcbdc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Minimum amount maintained for liquidity test.

+ References

No definition available.

+ Details

Name:	spcbdc_MinimumCashBalance
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-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

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-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

+ Details

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

- 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/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_CreditFacilityAxis=spcbdc_SeniorSecuredRevolvingCreditAgreementMember
Namespace Prefix:
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Balance Type:
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- Details

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CREDIT FACILITIES - Additional Information (Details)	Aug. 01, 2024 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2025 USD ($)	May 02, 2025 USD ($)	Dec. 31, 2024 USD ($)
Line of Credit Facility [Line Items]
Unused commitment fees percentage	0.50%
Deferred financing cost			$ 748,456		$ 784,768
Senior Secured Revolving Credit Agreement
Line of Credit Facility [Line Items]
Maximum borrowing capacity under credit facility		$ 195,000,000		$ 200,000,000
Credit facility, variable rate percentage		1.50%
Asset coverage ratio		1.67
Unused commitment fees percentage		0.50%
Minimum liquidity test amount		$ 10,000,000
Interest coverage ratio		1.75
Credit facility, before loan structure fee			123,100,000		90,450,000
Deferred financing cost		$ 1,778,540	896,847		972,372
Senior Secured Revolving Credit Agreement \| Scenario, Asset Coverage Ratio Equals or Below 1.90 Plus Alternate Base Rate Based Prime Rate Subject 3 Floor, Federal Funds Rate plus 0.50 and One Month SOFR Plus 1.00 [Member]
Line of Credit Facility [Line Items]
Credit facility, variable rate percentage		1.75%
Credit facility, variable rate adjustment		1
Asset coverage ratio		1.9
Senior Secured Revolving Credit Agreement \| SOFR
Line of Credit Facility [Line Items]
Credit facility, variable rate percentage		2.50%
Senior Secured Revolving Credit Agreement \| SOFR \| Scenario, Asset Coverage Ratio Equals or Below 1.90 Plus 0.10% one Month SOFR and 0.15% Three Month SOFR With 0.25% SOFR Floor
Line of Credit Facility [Line Items]
Credit facility, variable rate percentage		2.75%
Asset coverage ratio		1.9
Senior Secured Revolving Credit Agreement \| Floor rate
Line of Credit Facility [Line Items]
Credit facility, variable rate percentage		3.00%
Senior Secured Revolving Credit Agreement \| Floor rate \| Scenario, Asset Coverage Ratio Equals or Below 1.90 Plus 0.10% one Month SOFR and 0.15% Three Month SOFR With 0.25% SOFR Floor
Line of Credit Facility [Line Items]
Credit facility, variable rate adjustment		0.25
Senior Secured Revolving Credit Agreement \| Floor rate \| Scenario, Asset Coverage Ratio Equals or Below 1.90 Plus Alternate Base Rate Based Prime Rate Subject 3 Floor, Federal Funds Rate plus 0.50 and One Month SOFR Plus 1.00 [Member]
Line of Credit Facility [Line Items]
Credit facility, variable rate adjustment		0.25
Senior Secured Revolving Credit Agreement \| Federal funds rate
Line of Credit Facility [Line Items]
Credit facility, variable rate percentage		0.50%
Senior Secured Revolving Credit Agreement \| One-month Term SOFR \| Scenario, Asset Coverage Ratio Equals or Below 1.90 Plus 0.10% one Month SOFR and 0.15% Three Month SOFR With 0.25% SOFR Floor
Line of Credit Facility [Line Items]
Credit facility, variable rate adjustment		0.1
Senior Secured Revolving Credit Agreement \| One-month Term SOFR \| Scenario, Asset Coverage Ratio Equals or Below 1.90 Plus Alternate Base Rate Based Prime Rate Subject 3 Floor, Federal Funds Rate plus 0.50 and One Month SOFR Plus 1.00 [Member]
Line of Credit Facility [Line Items]
Credit facility, variable rate adjustment		0.1
Senior Secured Revolving Credit Agreement \| Three-month term SOFR \| Scenario, Asset Coverage Ratio Equals or Below 1.90 Plus 0.10% one Month SOFR and 0.15% Three Month SOFR With 0.25% SOFR Floor
Line of Credit Facility [Line Items]
Credit facility, variable rate adjustment		0.15
SPV Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity under credit facility	$ 50,000,000
Remaining borrowing capacity	$ 50,000,000
Credit facility, variable rate percentage	2.50%
Credit facility, variable rate adjustment	2.85
Unused commitment fees percentage	0.25%
Credit facility, before loan structure fee			$ 50,000,000		$ 50,000,000
Deferred financing cost	$ 832,155
SPV Facility \| Maximum
Line of Credit Facility [Line Items]
Unused commitment fees percentage	80.00%