XML 151 R124.htm IDEA: XBRL DOCUMENT v3.21.1
Financial and capital risk management - Wheaton Precious Metals Corp. warrants (Details)
 1 Months Ended 12 Months Ended
Feb. 29, 2020
USD ($)
$ / shares
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
EquityInstruments
Dec. 31, 2018
USD ($)
Derivative financial instruments.        
Financial settlement inflows (outflows)   $ (34,000,000) $ (324,000,000) $ (67,000,000)
Call options- WPM - Bought        
Derivative financial instruments.        
Notional | EquityInstruments     10,000,000  
Financial settlement inflows (outflows)   $ 25,000,000    
WPM Warrants        
Derivative financial instruments.        
Notional 10,000,000      
Financial settlement inflows (outflows) $ 25,000,000      
Sale price per warrant | $ / shares $ 2.50