| Document and Entity Information | Dec. 22, 2021 |
| Document And Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Dec. 22, 2021 |
| Entity Registrant Name | ARCTOS NORTHSTAR ACQUISITION CORP. |
| Entity Incorporation, State or Country Code | E9 |
| Entity File Number | 001-40092 |
| Entity Tax Identification Number | 98-1563556 |
| Entity Address, Address Line One | 2021 McKinney Avenue, #200 |
| Entity Address, City or Town | Dallas |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 75201 |
| City Area Code | 972 |
| Local Phone Number | 918-3800 |
| 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 |
| Amendment Flag | false |
| Entity Central Index Key | 0001829558 |
| Capital Units [Member] | |
| Document And Entity Information [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one Class A ordinary share, $0.0001 par value, andone-fourthof one redeemable warrant |
| Trading Symbol | ANAC.U |
| Security Exchange Name | NYSE |
| Common Class A [Member] | |
| Document And Entity Information [Line Items] | |
| Title of 12(b) Security | Class A Ordinary Shares included as part of the units |
| Trading Symbol | ANAC |
| Security Exchange Name | NYSE |
| Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Title of 12(b) Security | Warrants included as part of the units, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50 |
| Trading Symbol | ANAC WS |
| Security Exchange Name | NYSE |
