v3.25.2
Cover
May 27, 2025
Cover [Abstract]  
Document Type 8-K/A
Amendment Flag false
Document Period End Date May 27, 2025
Entity File Number 001-42668
Entity Registrant Name Kestrel Group Ltd
Entity Central Index Key 0002055116
Entity Tax Identification Number 98-1833921
Entity Incorporation, State or Country Code D0
Entity Address, Address Line One 11 Bermudiana Road, Suite 1141
Entity Address, City or Town Hamilton
Entity Address, Country BM
Entity Address, Postal Zip Code HM 11
City Area Code 441
Local Phone Number 298-4900
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Shares, par value $0.01 per share
Trading Symbol KG
Security Exchange Name NASDAQ
Entity Emerging Growth Company false