Debt Instrument, Increase (Decrease) Basis Spread on Variable Rate

No definition available.

Name:	bcred_DebtInstrumentIncreaseDecreaseBasisSpreadOnVariableRate
Namespace Prefix:	bcred_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Unused Capacity, Percentage

+ References

No definition available.

+ Details

Name:	bcred_LineOfCreditFacilityUnusedCapacityPercentage
Namespace Prefix:	bcred_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
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

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
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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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bcred_CastlePeakFundingFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	bcred_CommitmentFeeScenarioAxis=bcred_Scenario1Member
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Balance Type:
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- Details

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Balance Type:
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- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
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Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bcred_MiddleMarketLoansCastlePeakFundingFacilityMember
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Data Type:	na
Balance Type:
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- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	srt_RangeAxis=srt_MaximumMember
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Borrowings - Castle Peak Funding Facility (Details) - Revolving Credit Facility - Line of Credit - USD ($)	Jan. 08, 2024	May 18, 2021	Jan. 08, 2021	Sep. 30, 2022	Dec. 31, 2021	Dec. 21, 2021	Jul. 15, 2021	Mar. 15, 2021
Debt Instrument [Line Items]
Unused capacity, commitment fee percentage		0.375%
LIBOR
Debt Instrument [Line Items]
Applicable margin rate		1.00%
Castle Peak Funding Facility
Debt Instrument [Line Items]
Aggregate principal amount			$ 200,000,000	$ 1,600,000,000	$ 1,600,000,000	$ 1,600,000,000	$ 1,300,000,000	$ 800,000,000
Castle Peak Funding Facility \| Scenario 1
Debt Instrument [Line Items]
Unused capacity, commitment fee percentage			1.85%
Castle Peak Funding Facility \| Scenario 2
Debt Instrument [Line Items]
Unused capacity, commitment fee percentage			0.50%
Castle Peak Funding Facility \| LIBOR
Debt Instrument [Line Items]
Applicable margin rate			1.50%
Castle Peak Funding Facility \| LIBOR \| Forecast
Debt Instrument [Line Items]
Increase in rate	1.00%
Middle Market Loans, Castle Peak Funding Facility
Debt Instrument [Line Items]
Applicable margin rate			2.00%
Low \| Castle Peak Funding Facility \| Scenario 1
Debt Instrument [Line Items]
Unused capacity threshold percentage			30.00%
Low \| Castle Peak Funding Facility \| Scenario 2
Debt Instrument [Line Items]
Unused capacity threshold percentage			10.00%
High \| Castle Peak Funding Facility \| Scenario 2
Debt Instrument [Line Items]
Unused capacity threshold percentage			30.00%