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Borrowings - Disclosure of Effective Interest Rates (Details) - Effective Interest Rate	Jun. 30, 2019	Jun. 30, 2018
R1 billion revolving credit facility
Disclosure of detailed information about borrowings [line items]
Interest rate	10.10%	10.20%
R2 billion facility
Disclosure of detailed information about borrowings [line items]
Interest rate	10.00%	0.00%
Westpac fleet loan
Disclosure of detailed information about borrowings [line items]
Interest rate	5.50%	0.00%
US$250 million revolving credit facility
Disclosure of detailed information about borrowings [line items]
Interest rate	0.00%	4.20%
US$350 million facility
Disclosure of detailed information about borrowings [line items]
Interest rate	5.60%	4.80%
US$200 million bridge loan
Disclosure of detailed information about borrowings [line items]
Interest rate	5.10%	4.50%

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_7&doctype=Standard
-URIDate 2018-03-16

+ Details

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X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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