XML 94 R84.htm IDEA: XBRL DOCUMENT
v3.24.3

STOCKHOLDERS’ EQUITY - Common Shares Issued and Sold (Details) $ / shares in Units, shares in Millions, $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2024 USD ($) $ / shares shares
Subsidiary, Sale of Stock [Line Items] |
Number of Shares Issued (in shares) | shares | 40.6
Gross Proceeds | $ 844.0
Underwriting Fees/Offering Expenses | 8.8
Net Proceeds | $ 835.2
“At the market” offerings |
Subsidiary, Sale of Stock [Line Items] |
Number of Shares Issued (in shares) | shares | 40.6
Gross Proceeds | $ 844.0
Underwriting Fees/Offering Expenses | 8.8
Net Proceeds | $ 835.2
Average Offering Price Per Share (in dollars per share) | $ / shares | $ 20.81

X
- Definition Sale of Stock, Gross Proceeds Received + References No definition available. + Details
Name: | arcc_SaleOfStockGrossProceedsReceived
Namespace Prefix: | arcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15 + Details
Name: | us-gaap_PaymentsOfStockIssuanceCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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 Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
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_SubsidiarySaleOfStockAxis=arcc_AtTheMarketOfferingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |