XML 82 R72.htm IDEA: XBRL DOCUMENT
v3.24.3

COMMITMENTS AND CONTINGENCIES - Loan Commitments (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Other Commitments [Line Items] |  |
Total unfunded equity commitments | $ 25.0 | $ 32.0
Revolving and delayed draw loan commitments |  |
Other Commitments [Line Items] |  |
Total commitments | 4,037.2 | 2,766.3
Less: funded commitments | (472.7) | (482.1)
Less: unavailable delayed draw loan commitments due to borrowing base or other covenant restrictions | (24.2) | (12.9)
Total unfunded equity commitments | 3,564.5 | 2,284.2
Total net unfunded revolving and delayed draw loan commitments | 3,540.3 | 2,271.3
Revolving loan commitments |  |
Other Commitments [Line Items] |  |
Total commitments | 2,025.0 | 1,814.0
Less: funded commitments | (473.0) | (482.0)
Less: unavailable delayed draw loan commitments due to borrowing base or other covenant restrictions | (8.0) | 0.0
Total unfunded equity commitments | 1,544.0 | 1,332.0
Delayed draw loan commitments |  |
Other Commitments [Line Items] |  |
Total commitments | 2,012.0 | 952.0
Less: unavailable delayed draw loan commitments due to borrowing base or other covenant restrictions | (16.0) | (13.0)
Total unfunded equity commitments | $ 1,996.0 | $ 939.0

X
- Definition Investment Company, Funded Commitments + References No definition available. + Details
Name: | arcc_InvestmentCompanyFundedCommitments
Namespace Prefix: | arcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Investment Company, Net Adjusted Unfunded Commitments + References No definition available. + Details
Name: | arcc_InvestmentCompanyNetAdjustedUnfundedCommitments
Namespace Prefix: | arcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Investment Company, Unavailable Commitments + References No definition available. + Details
Name: | arcc_InvestmentCompanyUnavailableCommitments
Namespace Prefix: | arcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financial support committed by investment company to investee that is contractually required but not provided. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480990/946-20-50-16 + Details
Name: | us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of financial support committed by investment company to investee that is contractually required. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480990/946-20-50-15 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480990/946-20-50-15 + Details
Name: | us-gaap_InvestmentCompanyFinancialSupportToInvesteeContractuallyRequiredAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis=arcc_RevolvingAndDelayedDrawLoanCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis=arcc_RevolvingLoanCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialSupportToNonconsolidatedLegalEntityAxis=us-gaap_DelayedDrawTermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |