Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Apr. 19, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K/A    
Document Annual Report true    
Current Fiscal Year End Date --12-31    
Document Period End Date Dec. 31, 2020    
Document Transition Report false    
Entity File Number 001-36421    
Entity Registrant Name Aurinia Pharmaceuticals Inc.    
Entity Incorporation, State or Country Code Z4    
Entity Address, Address Line One #1203-4464 Markham Street    
Entity Address, City or Town Victoria    
Entity Address, State or Province BC    
Entity Address, Postal Zip Code V8Z 7X8    
Entity Tax Identification Number 46-4129078    
City Area Code 250    
Local Phone Number 708-4272    
Title of 12(b) Security Common shares, no par value    
Trading Symbol AUPH    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 1,310
Entity Common Stock, Shares Outstanding   128,120,927  
Documents Incorporated by Reference None.    
Amendment Flag false    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001600620