XML 66 R36.htm IDEA: XBRL DOCUMENT v3.10.0.1
Acquisitions and other transactions (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Feb. 28, 2018
AUD ($)
item
Jan. 19, 2018
USD ($)
$ / oz
item
oz
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Aug. 06, 2018
USD ($)
Y
Feb. 20, 2018
USD ($)
Dec. 31, 2017
USD ($)
Acquisitions                  
Revenue     $ 161.3 $ 163.6 $ 334.4 $ 336.3      
SCOOP and STACK, Oklahoma | Asset acquisition subsequent to year-end                  
Acquisitions                  
Value of contribution to be made by entity             $ 220.0    
Value of annual spending amount             $ 100.0    
The number of years of annual spending amounts | Y             3    
Value of contribution to be made by Continental Resources, Inc.             $ 25.0    
The number of years of annual spending amounts for Continental Resources, Inc. | Y             3    
SCOOP and STACK, Oklahoma | Asset acquisition subsequent to year-end | Bottom                  
Acquisitions                  
Percent of revenue the reporting entity is entitled to receive (as a percent)             50.00%    
SCOOP and STACK, Oklahoma | Asset acquisition subsequent to year-end | Top                  
Acquisitions                  
Percent of revenue the reporting entity is entitled to receive (as a percent)             75.00%    
Amended and restated Cobre Panama Agreement                  
Acquisitions                  
Percentage of the project covered by the amended and restated agreement (as a percent)   100.00%              
Ownership percentage of the project by First Quantum (as a percent)   90.00%              
Ownership percentage of project by KORES (as a percent)   10.00%              
Number of distinct precious metals streams | item   2              
Capitalized costs for the project         1,249.3        
Amended and restated Cobre Panama Agreement - Fixed Payment Stream                  
Acquisitions                  
First Quantum's initial interest percent in original stream (as a percent)   80.00%              
Payment for each ounce of gold (in dollars per ounce) | $ / oz   418              
Payment for each ounce of silver (in dollars per ounce) | $ / oz   6.27              
The annual inflation factor rate (as a percent)   1.50%              
Quantity of delivered gold ounces before purchase decreases to next threshold from initial threshold | oz   1,341,000              
Maximum ounces of silver on which on-going price of spot price is payable | oz   21,500,000              
Percentage of spot price of gold on which on-going price is paid after maximum ounces have been delivered   50.00%              
Percentage of spot price of silver on which on-going price is paid after maximum ounces have been delivered   50.00%              
Deposit funded on a pro-rata basis   33.33%              
Amount funded by the company     89.2   159.4        
Cumulative amount funded by the company     $ 886.0   $ 886.0        
Amended and restated Cobre Panama Agreement - Fixed Payment Stream | Top                  
Acquisitions                  
Deposit provided to acquiree   $ 1,000.0              
Amended and restated Cobre Panama Agreement - Floating Payment Stream                  
Acquisitions                  
First Quantum additional interest percent in project acquired from LS-Nikko Copper Inc. (as a percent)   10.00%              
KORES interest percent in project (as a percent)   10.00%              
Percentage of spot price of gold and silver on which on-going price is paid   20.00%              
Maximum ounces of gold on which on-going price of spot price is payable | oz   604,000              
Maximum ounces of silver on which on-going price of spot price is payable | oz   9,618,000              
Percentage of spot price of gold and silver on which on-going price is paid after maximum ounces have been delivered   50.00%              
Amount funded by the company   $ 356.0              
Bowen Basin Coal Royalties, Australia                  
Acquisitions                  
Number of additional exploration tenements | item 33                
Cash transferred $ 4,200,000                
Royalty rate per tonne $ 0.10                
U.S. Oil & Gas Royalties - Delaware Texas                  
Acquisitions                  
Consideration transferred               $ 101.3  
Deposit provided to acquiree                 $ 11.0