Document and Entity Information
Oct. 21, 2020
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001655075
Document Type 8-K
Document Period End Date Oct. 21, 2020
Entity Registrant Name ARMSTRONG FLOORING, INC.
Entity Incorporation State Country Code DE
Entity File Number 001-37589
Entity Tax Identification Number 47-4303305
Entity Address, Address Line One 2500 Columbia Avenue P.O. Box 3025
Entity Address, City or Town Lancaster
Entity Address, State or Province PA
Entity Address, Postal Zip Code 17603
City Area Code (717)
Local Phone Number 672-9611
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Security 12b Title Common Stock, $0.0001 par value
Trading Symbol AFI
Security Exchange Name NYSE