v3.25.2
Document and Entity Information
Aug. 11, 2025
Cover [Abstract]  
Entity Registrant Name LIGAND PHARMACEUTICALS INC
Amendment Flag false
Entity Central Index Key 0000886163
Document Type 8-K
Document Period End Date Aug. 11, 2025
Entity Incorporation State Country Code DE
Entity File Number 001-33093
Entity Tax Identification Number 77-0160744
Entity Address, Address Line One 555 Heritage Drive
Entity Address, Address Line Two Suite 200
Entity Address, City or Town Jupiter
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33458
City Area Code (858)
Local Phone Number 550-7500
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, par value $0.001 per share
Trading Symbol LGND
Security Exchange Name NASDAQ
Entity Emerging Growth Company false