v3.25.2
Document and Entity Information
Jul. 14, 2025
Cover [Abstract]  
Entity Registrant Name STEPAN CO
Amendment Flag false
Entity Central Index Key 0000094049
Document Type 8-K
Document Period End Date Jul. 14, 2025
Entity Incorporation State Country Code DE
Entity File Number 1-4462
Entity Tax Identification Number 36-1823834
Entity Address, Address Line One 1101 Skokie Boulevard
Entity Address, Address Line Two Suite 500
Entity Address, City or Town Northbrook
Entity Address, State or Province IL
Entity Address, Postal Zip Code 60062
City Area Code 847
Local Phone Number 446-7500
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $1 par value
Trading Symbol SCL
Security Exchange Name NYSE
Entity Emerging Growth Company false