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Share-Based Payment - Summary of Key Share-based Awards Expense and their Respective Equity or Liability Balances (Detail)
 12 Months Ended
Dec. 31, 2019
shares
Dec. 31, 2018
shares
Dec. 31, 2017
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Beginning balance 10,582,850 12,723,354 4,989,600
Granted 14,597 5,701,374 8,073,702
Issued (159,751) (146,806)  
Cancelled (635,962)    
Reclassified   0  
Repurchased (3,838) (1,814,022) (339,948)
Converted   (5,881,050)  
Ending balance 9,797,896 10,582,850 12,723,354
Total attributable to the equity holders of the parent [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Beginning balance 10,582,850 1,104,264 1,444,212
Granted 14,597 5,701,374 0
Issued (159,751) (146,806)  
Cancelled (635,962)    
Reclassified   11,619,090  
Repurchased (3,838) (1,814,022) (339,948)
Converted   (5,881,050)  
Ending balance 9,797,896 10,582,850 1,104,264
Total attributable to the equity holders of the parent [member] | Restricted stock units [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Beginning balance 5,114,450 0 0
Granted 9,437 5,261,256 0
Issued (159,751) (146,806)  
Cancelled (529,240)    
Reclassified   0  
Repurchased 0 0 0
Converted   0  
Ending balance 4,434,896 5,114,450 0
Total attributable to the equity holders of the parent [member] | Stock Options [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Beginning balance 135,198 0 0
Granted 5,160 135,198 0
Issued 0 0  
Cancelled (106,722)    
Reclassified   0  
Repurchased 0 0 0
Converted   0  
Ending balance 33,636 135,198 0
Total attributable to the equity holders of the parent [member] | Incentive [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Beginning balance 5,333,202 0 0
Granted 0 304,920 0
Issued 0 0  
Reclassified   5,028,282  
Repurchased (3,838) 0 0
Converted   0  
Ending balance 5,329,364 5,333,202 0
Total attributable to the equity holders of the parent [member] | Class C Shares [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Beginning balance 0 1,104,264 1,444,212
Granted 0 0 0
Issued 0 0  
Reclassified   6,590,808  
Repurchased 0 (1,814,022) (339,948)
Converted   (5,881,050)  
Ending balance 0 0 1,104,264
Liability [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Beginning balance 0 11,619,090 3,545,388
Granted 0 0 8,073,702
Issued 0 0  
Reclassified   (11,619,090)  
Repurchased 0 0 0
Converted   0  
Ending balance 0 0 11,619,090
Liability [member] | Incentive [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Beginning balance 0 5,028,282 0
Granted 0 0 5,028,282
Issued 0 0  
Reclassified   (5,028,282)  
Repurchased 0 0 0
Converted   0  
Ending balance 0 0 5,028,282
Liability [member] | Class C Shares [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Beginning balance 0 6,590,808 3,545,388
Granted 0 0 3,045,420
Issued 0 0  
Reclassified   (6,590,808)  
Repurchased 0 0 0
Converted   0  
Ending balance 0 0 6,590,808