XML 98 R88.htm IDEA: XBRL DOCUMENT
v3.24.3

DIVIDENDS AND DISTRIBUTIONS - Dividend Reinvestment Plan Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Equity [Abstract] |  |
Shares issued (in shares) | 3.0 | 1.7
Average issue price per share (in dollars per share) | $ 20.87 | $ 19.17
Shares purchased by plan agent to satisfy dividends declared and payable during the period for stockholders (in shares) | $ 0.0 | $ 0.8
Average purchase price per share (in dollars per share) | $ 0 | $ 18.35

X
- Definition Shares Purchased, Price Per Share + References No definition available. + Details
Name: | arcc_SharesPurchasedPricePerShare
Namespace Prefix: | arcc_
Data Type: | dtr-types1:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stock Issued During Period, Shares Purchased To Satisfy Dividends + References No definition available. + Details
Name: | arcc_StockIssuedDuringPeriodSharesPurchasedToSatisfyDividends
Namespace Prefix: | arcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
Name: | us-gaap_SharesIssuedPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478448/946-505-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(4)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration