v3.22.2.2
Cover Page
Nov. 21, 2022
Cover [Abstract]  
Document Type 8-K
Document Period End Date Nov. 21, 2022
Entity Registrant Name PROTHENA CORPORATION PUBLIC LIMITED COMPANY
Entity Incorporation, State or Country Code L2
Entity File Number 001-35676
Entity Tax Identification Number 98-1111119
Entity Address, Address Line One 77 Sir John Rogerson's Quay, Block C
Entity Address, Address Line Two Grand Canal Docklands
Entity Address, City or Town Dublin 2,
Entity Address, Postal Zip Code D02 VK60,
Entity Address, Country IE
Country Region 353
City Area Code 1
Local Phone Number 236-2500
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Ordinary Shares, par value $0.01 per share
Trading Symbol PRTA
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Central Index Key 0001559053
Amendment Flag false