v3.26.1
Cover
Apr. 09, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Apr. 09, 2026
Entity File Number 001-39918
Entity Registrant Name Perpetua Resources Corp.
Entity Central Index Key 0001526243
Entity Tax Identification Number 98-1040943
Entity Incorporation, State or Country Code A1
Entity Address, Address Line One 405 S. 8th Street
Entity Address, Address Line Two Ste. 201
Entity Address, City or Town Boise
Entity Address, State or Province ID
Entity Address, Postal Zip Code 83702
City Area Code 208
Local Phone Number 901-3060
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Shares, without par value
Trading Symbol PPTA
Security Exchange Name NASDAQ
Entity Emerging Growth Company false