v3.26.1
Document and Entity Information
May 29, 2026
Cover [Abstract]  
Document Type 8-K
Document Period End Date May 29, 2026
Entity Registrant Name ACCELERANT HOLDINGS
Entity Incorporation State Country Code E9
Entity Address Address Line 1 c/o Accelerant Re (Cayman) Ltd.
Entity Address Address Line 2 Unit 106, Windward 3, Regatta Office Park
Entity Address Address Line 3 West Bay Road
Entity Address City Or Town Grand Cayman
Entity Address Country KY
Entity Address Postal Zip Code KY1-1108
Entity File Number 001-42765
Entity Tax Identification Number 98-1753044
Country Region 1
City Area Code 345
Local Phone Number 743-4611
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Class A common shares, $0.0000011951862 par value per share
Trading Symbol ARX
Security Exchange Name NYSE
Entity Emerging Growth Company true
Entity Ex Transition Period true
Amendment Flag false
Entity Central Index Key 0001997350