v3.25.3
Cover
Nov. 04, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Nov. 04, 2025
Entity Registrant Name INTEGRAL AD SCIENCE HOLDING CORP.
Entity Incorporation, State or Country Code DE
Entity File Number 001-40557
Entity Tax Identification Number 83-0731995
Entity Address, Postal Zip Code 10017
City Area Code 646
Local Phone Number 278-4871
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
Trading Symbol IAS
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Address, Address Line One 12 E 49th Street,
Entity Address, City or Town New York,
Entity Address, State or Province NY
Amendment Flag false
Entity Central Index Key 0001842718
Entity Address, Address Line Two 20th Floor