Quarterly report pursuant to Section 13 or 15(d)

Business - Summary of entities in control (Detail)

v3.21.2
Business - Summary of entities in control (Detail)
 3 Months Ended
Sep. 30, 2021
Schedule Of Entities In Control [Line Items]  
Principal place of business/country of incorporation DE
Benitec Biopharma Proprietary Limited ("BBL") [Member]  
Schedule Of Entities In Control [Line Items]  
Principal place of business/country of incorporation C3
Benitec Australia Proprietary Limited [Member]  
Schedule Of Entities In Control [Line Items]  
Principal place of business/country of incorporation C3
Benitec Limited [Member]  
Schedule Of Entities In Control [Line Items]  
Principal place of business/country of incorporation X0
Benitec, Inc. [Member]  
Schedule Of Entities In Control [Line Items]  
Principal place of business/country of incorporation X1
Benitec LLC [Member]  
Schedule Of Entities In Control [Line Items]  
Principal place of business/country of incorporation X1
RNAi Therapeutics, Inc. [Member]  
Schedule Of Entities In Control [Line Items]  
Principal place of business/country of incorporation X1
Tacere Therapeutics, Inc. [Member]  
Schedule Of Entities In Control [Line Items]  
Principal place of business/country of incorporation X1
Benitec Biopharma Proprietary Limited [Member]  
Schedule Of Entities In Control [Line Items]  
Principal place of business/country of incorporation X1