v3.22.2.2
Cover
Sep. 01, 2022
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 01, 2022
Entity File Number 001-02658
Entity Registrant Name STEWART INFORMATION SERVICES CORPORATION
Entity Central Index Key 0000094344
Entity Tax Identification Number 74-1677330
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 1360 Post Oak Blvd
Entity Address, Address Line Two Suite 100
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77056
City Area Code 713
Local Phone Number 625-8100
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $1 par value
Trading Symbol STC
Security Exchange Name NYSE
Entity Emerging Growth Company false