Document and Entity Information
Jan. 19, 2022
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jan. 19, 2022
Current Fiscal Year End Date --12-31
Entity Registrant Name FIRST AMERICAN FINANCIAL CORPORATION
Entity Central Index Key 0001472787
Entity Emerging Growth Company false
Entity File Number 001-34580
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 26-1911571
Entity Address, Address Line One 1 First American Way
Entity Address, City or Town Santa Ana
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92707-5913
City Area Code 714
Local Phone Number 250-3000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.00001 par value
Trading Symbol FAF
Security Exchange Name NYSE