| Document and Entity Information | Jun. 12, 2023 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Jun. 12, 2023 |
| Entity Registrant Name | ARES ACQUISITION CORPORATION II |
| Entity Incorporation, State or Country Code | E9 |
| Entity File Number | 001-41691 |
| Entity Tax Identification Number | 98-1592112 |
| Entity Address, Address Line One | 245 Park Avenue |
| Entity Address, Address Line Two | 44th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10167 |
| City Area Code | 310 |
| Local Phone Number | 201-4100 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001853138 |
| Amendment Flag | false |
| Units, each consisting of one Class A Ordinary Share, $0.0001 par value, and one-half of one redeemable warrant [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one Class A Ordinary Share, $0.0001 par value, and one-half of one redeemable warrant |
| Trading Symbol | AACT.U |
| Security Exchange Name | NYSE |
| Class A Ordinary Shares included as part of the units [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A Ordinary Shares |
| Trading Symbol | AACT |
| Security Exchange Name | NYSE |
| Redeemable warrants, included as part of the units, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50 [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Redeemable warrants, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50 |
| Trading Symbol | AACT WS |
| Security Exchange Name | NYSE |
