XML 257 R160.htm IDEA: XBRL DOCUMENT v3.19.3
Borrowings - Disclosure of Facilities' Terms Schedule (Details)
 1 Months Ended
Nov. 30, 2018
ZAR (R)
Jul. 31, 2018
USD ($)
Oct. 31, 2017
USD ($)
Jul. 31, 2017
USD ($)
Feb. 28, 2017
ZAR (R)
Jun. 30, 2019
ZAR (R)
Jun. 30, 2019
USD ($)
R1 billion revolving credit facility              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | R           R 1,000,000,000  
R2 billion facility              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | R R 2,000,000,000         R 2,000,000,000  
Term of facility 4 years            
US$350 million facility              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | $       $ 350,000,000     $ 350,000,000
Term of facility       3 years      
US$200 million bridge loan              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | $     $ 200,000,000       $ 200,000,000
Term of facility     1 year        
Westpac fleet loan              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | $   $ 24,000,000          
Term of facility   4 years          
Westpac fleet loan | LIBOR              
Disclosure of detailed information about borrowings [line items]              
Interest charge (as a percent)   3.20%          
Revolving credit facility | R1 billion revolving credit facility              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | R         R 1,000,000,000    
Term of facility         3 years    
Revolving credit facility | R1 billion revolving credit facility | JIBAR              
Disclosure of detailed information about borrowings [line items]              
Interest charge (as a percent)         3.15%    
Revolving credit facility | R2 billion facility              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | R R 1,400,000,000            
Revolving credit facility | R2 billion facility | JIBAR              
Disclosure of detailed information about borrowings [line items]              
Interest charge (as a percent) 2.80%            
Revolving credit facility | US$350 million facility              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | $       $ 175,000,000      
Revolving credit facility | US$350 million facility | LIBOR              
Disclosure of detailed information about borrowings [line items]              
Interest charge (as a percent)       3.00%      
Term loan | R2 billion facility              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | R R 600,000,000            
Term loan | R2 billion facility | JIBAR              
Disclosure of detailed information about borrowings [line items]              
Interest charge (as a percent) 2.90%            
Term loan | US$350 million facility              
Disclosure of detailed information about borrowings [line items]              
Maximum borrowing capacity | $       $ 175,000,000      
Term loan | US$350 million facility | LIBOR              
Disclosure of detailed information about borrowings [line items]              
Interest charge (as a percent)       3.15%      
First 6 months | US$200 million bridge loan | LIBOR              
Disclosure of detailed information about borrowings [line items]              
Interest charge (as a percent)     2.50%        
Next 3 months | US$200 million bridge loan | LIBOR              
Disclosure of detailed information about borrowings [line items]              
Interest charge (as a percent)     3.00%        
Last 3 months | US$200 million bridge loan | LIBOR              
Disclosure of detailed information about borrowings [line items]              
Interest charge (as a percent)     3.50%