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Document and Entity Information
Oct. 08, 2020
Document And Entity Information [Line Items]  
Entity Registrant Name GRAY TELEVISION INC
Entity Address, State or Province GA
Amendment Flag false
Entity Central Index Key 0000043196
Document Type 8-K
Document Period End Date Oct. 08, 2020
Entity Incorporation State Country Code GA
Entity File Number 001-13796
Entity Tax Identification Number 58-0285030
Entity Address, Address Line One 4370 Peachtree Road
Entity Address, City or Town Atlanta
Entity Address, Postal Zip Code 30319
City Area Code 404
Local Phone Number 504-9828
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Class A [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Class A common stock (no par value)
Trading Symbol GTN.A
Security Exchange Name NYSE
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title common stock (no par value)
Trading Symbol GTN
Security Exchange Name NYSE