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Cover Page
Dec. 31, 2025
Jun. 17, 2025
Cover [Abstract]    
Document Type   8-K
Document Period End Date   Jun. 17, 2025
Entity Registrant Name   COMSCORE, INC.
Entity Incorporation, State or Country Code   DE
Entity File Number   001-33520
Entity Tax Identification Number   54-1955550
Entity Address, Address Line One   11950 Democracy Drive
Entity Address, Address Line Two   Suite 600
Entity Address, City or Town   Reston
Entity Address, State or Province   VA
Entity Address, Postal Zip Code   20190
City Area Code   703
Local Phone Number   438–2000
Written Communications   false
Soliciting Material   false
Pre-commencement Tender Offer   false
Pre-commencement Issuer Tender Offer   false
Title of 12(b) Security   Common Stock, par value $0.001 per share
Trading Symbol   SCOR
Security Exchange Name   NASDAQ
Entity Emerging Growth Company   false
Entity Central Index Key   0001158172
Amendment Flag   false
Current Fiscal Year End Date --12-31