Debt Instrument, Basis Spread on Variable Rate, Increase Per Annum If Event Of Default

No definition available.

Name:	obdc_DebtInstrumentBasisSpreadOnVariableRateIncreasePerAnnumIfEventOfDefault
Namespace Prefix:	obdc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Basis Spread on Variable Rate, Increase Per Annum If No Event Of Default

+ References

No definition available.

+ Details

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Namespace Prefix:	obdc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- 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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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

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+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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

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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

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

Debt - SPV Asset Facilities (Details) - Line of Credit - USD ($)	Mar. 31, 2025	Mar. 20, 2024	Dec. 02, 2021	Jul. 29, 2021	Jun. 30, 2026	Dec. 31, 2025	Oct. 10, 2024	Dec. 08, 2023
SPV Asset Facility II
Debt Instrument [Line Items]
Maximum principal amount	$ 300,000,000.0				$ 300,000,000	$ 300,000,000
SPV Asset Facility II \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum principal amount	$ 300,000,000.0
Commitment fee percentage	0.50%
SPV Asset Facility II \| Revolving Credit Facility \| Period One
Debt Instrument [Line Items]
Basis spread on variable rate	0.10%
SPV Asset Facility II \| Revolving Credit Facility \| Period One \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	1.95%
SPV Asset Facility V
Debt Instrument [Line Items]
Maximum principal amount					525,000,000	525,000,000		$ 525,000,000.0
SPV Asset Facility V \| SOFR
Debt Instrument [Line Items]
Basis spread on variable rate				1.90%
SPV Asset Facility V \| CORRA Plus
Debt Instrument [Line Items]
Basis spread on variable rate				1.90%
SPV Asset Facility V \| EURIBOR Plus
Debt Instrument [Line Items]
Basis spread on variable rate				1.90%
SPV Asset Facility V \| SONIA Plus
Debt Instrument [Line Items]
Basis spread on variable rate				1.90%
SPV Asset Facility V \| Maximum
Debt Instrument [Line Items]
Commitment fee percentage				1.00%
SPV Asset Facility V \| Minimum
Debt Instrument [Line Items]
Commitment fee percentage				0.00%
SPV Asset Facility V \| Bridge Loan
Debt Instrument [Line Items]
Maximum principal amount				$ 100,000,000.0
SPV Asset Facility VI
Debt Instrument [Line Items]
Maximum principal amount					$ 500,000,000	500,000,000	$ 500,000,000.0
SPV Asset Facility VI \| SOFR
Debt Instrument [Line Items]
Basis spread on variable rate			1.70%
Basis spread on variable rate, increase per annum			0.15%
Increase per annum in event of default occurs			2.00%
SPV Asset Facility VI \| Maximum
Debt Instrument [Line Items]
Fee on unused portion of credit facility			0.25%
SPV Asset Facility VI \| Maximum \| Initial Second Threshold Percentage
Debt Instrument [Line Items]
Fee on unused portion of credit facility			35.00%
SPV Asset Facility VI \| Minimum
Debt Instrument [Line Items]
Fee on unused portion of credit facility			0.00%
SPV Asset Facility VI \| Minimum \| Initial Threshold Percentage
Debt Instrument [Line Items]
Fee on unused portion of credit facility			20.00%
ORCC III Financing II \| Maximum \| Initial Fourth Threshold Percentage
Debt Instrument [Line Items]
Fee on unused portion of credit facility			60.00%
ORCC III Financing II \| Minimum \| Initial Third Threshold Percentage
Debt Instrument [Line Items]
Fee on unused portion of credit facility			50.00%
SPV Asset Facility VII
Debt Instrument [Line Items]
Maximum principal amount		$ 300,000,000.0				$ 300,000,000
SPV Asset Facility VII \| CORRA Plus
Debt Instrument [Line Items]
Basis spread on variable rate		0.29547%
SPV Asset Facility VII \| SONIA Plus
Debt Instrument [Line Items]
Basis spread on variable rate		0.1193%
SPV Asset Facility VII \| Maximum
Debt Instrument [Line Items]
Fee on unused portion of credit facility		1.25%
SPV Asset Facility VII \| Maximum \| EURIBOR Plus
Debt Instrument [Line Items]
Basis spread on variable rate		2.50%
SPV Asset Facility VII \| Minimum
Debt Instrument [Line Items]
Fee on unused portion of credit facility		0.25%
SPV Asset Facility VII \| Minimum \| EURIBOR Plus
Debt Instrument [Line Items]
Basis spread on variable rate		1.75%