v3.25.2
Document and Entity Information
Sep. 30, 2025
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001159036
Document Type 8-K
Document Period End Date Sep. 30, 2025
Entity Registrant Name HALOZYME THERAPEUTICS, INC.
Entity File Number 001-32335
Entity Incorporation State Country Code DE
Entity Tax Identification Number 88-0488686
Entity Address, Address Line One 12390 El Camino Real
Entity Address, City or Town San Diego
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92130
City Area Code (858)
Local Phone Number 794-8889
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.001 par value
Trading Symbol HALO
Security Exchange Name NASDAQ
Entity Emerging Growth Company false