XML 95 R85.htm IDEA: XBRL DOCUMENT
v3.24.3

STOCKHOLDERS’ EQUITY - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 1 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2024 | Sep. 30, 2024
Subsidiary, Sale of Stock [Line Items] |  |
Number of shares issued (in shares) |  | 40.6
Net Proceeds |  | $ 835.2
Authorized amount of stock repurchase program |  | 1,000.0
Stock available for repurchase under the stock repurchase program |  | 1,000.0
2024 Convertible Notes |  |
Subsidiary, Sale of Stock [Line Items] |  |
Conversion price (in usd per share) | $ 20.12 |
Net Proceeds | $ 407.0 |
“At the market” offerings |  |
Subsidiary, Sale of Stock [Line Items] |  |
Maximum issuance of common stock |  | 1,000.0
Stock available for issuance |  | $ 695.0
Number of shares issued (in shares) |  | 40.6
Net Proceeds |  | $ 835.2
Over-allotment option one | 2024 Convertible Notes |  |
Subsidiary, Sale of Stock [Line Items] |  |
Number of shares issued (in shares) | 20.0 |

X
- Definition Capital Stock, Capital Shares Reserved For Future Issuance, Amount + References No definition available. + Details
Name: | arcc_CapitalStockCapitalSharesReservedForFutureIssuanceAmount
Namespace Prefix: | arcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sale Of Stock, Available For Issuance, Amount + References No definition available. + Details
Name: | arcc_SaleOfStockAvailableForIssuanceAmount
Namespace Prefix: | arcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481520/505-30-50-4 + Details
Name: | srt_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-5 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Cash received on stock transaction after deduction of issuance costs. + References No definition available. + Details
Name: | us-gaap_SaleOfStockConsiderationReceivedOnTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
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_SubsidiarySaleOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=arcc_A2024ConvertibleNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=arcc_AtTheMarketOfferingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=arcc_OverAllotmentOptionOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |