XML 160 R107.htm IDEA: XBRL DOCUMENT v3.21.1
Loans and borrowings - Changes in Liabilities Arising from Financing Activities (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Beginning Balance $ 1,254,891 $ 1,669,224
Beginning Balance 1,365,329  
Cash flows 93,609 (545,334)
Foreign Exchange Movement (347) (84)
Leases 19,995 32,034
Concession Covid-19 (489) 0
Other (117,677) 99,051
Ending balance 1,360,420 1,254,891
Loans and borrowings [member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Beginning Balance 1,060,765 1,293,541
Cash flows 220,812 (331,827)
Foreign Exchange Movement 0 0
Leases 0 0
Concession Covid-19 0 0
Other (117,677) 99,051
Ending balance 1,163,900 1,060,765
Lease liability [member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Beginning Balance 304,564 375,683
Cash flows (93,213) (103,069)
Foreign Exchange Movement (347) (84)
Leases 19,995 32,034
Concession Covid-19 (489) 0
Other 0 0
Ending balance 230,510 304,564
Dividends payable [member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Beginning Balance (110,438)  
Beginning Balance 0  
Cash flows (33,990) (110,438)
Foreign Exchange Movement 0 0
Leases 0 0
Concession Covid-19 0 0
Other 0 0
Ending balance $ (33,990) $ (110,438)