Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Related Party Transactions - Summary of Common Shares Outstanding and Percentage Control of the Company (Detail)

v3.20.1
Related Party Transactions - Summary of Common Shares Outstanding and Percentage Control of the Company (Detail) - shares
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Jun. 19, 2018
Disclosure of transactions between related parties [line items]      
Number of Shares 39,907,681 21,675,849 419,888,250
Percentage of ownership 100.00% 100.00%  
Key management personnel of entity or parent [member]      
Disclosure of transactions between related parties [line items]      
Number of Shares 60,168 65,428  
Percentage of ownership 0.15% 0.30%  
Key management personnel of entity or parent [member] | John Barker [member]      
Disclosure of transactions between related parties [line items]      
Number of Shares 32,714 31,714  
Percentage of ownership 0.08% 0.15%  
Key management personnel of entity or parent [member] | David McNally [member]      
Disclosure of transactions between related parties [line items]      
Number of Shares 4,167 4,167  
Percentage of ownership 0.01% 0.02%  
Key management personnel of entity or parent [member] | Stephen Randall [member]      
Disclosure of transactions between related parties [line items]      
Number of Shares 22,993 21,643  
Percentage of ownership 0.06% 0.10%  
Key management personnel of entity or parent [member] | John Schellhorn [member]      
Disclosure of transactions between related parties [line items]      
Number of Shares 294 294  
Percentage of ownership 0.00% 0.00%  
Key management personnel of entity or parent [member] | Bruce Wolff [member]      
Disclosure of transactions between related parties [line items]      
Number of Shares [1]   7,610  
Percentage of ownership [1]   0.03%  
[1] Bruce Wolff retired as a Director effective May 29, 2019