Cash-settled share-based payment provision - Assumptions used to calculate share-based payment expense (Details)	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019
SARs with no CPTs
Share-based payment transaction
Risk-free interest rate		6.96%
Expected volatility		35.74%
Expected dividend yield		4.76%
SARs with CPTs
Share-based payment transaction
Expected volatility	135.76%	35.83%
Expected dividend yield	0.06%	4.99%
Minimum \| SARs with CPTs
Share-based payment transaction
Risk-free interest rate	3.58%	6.64%
Maximum \| SARs with CPTs
Share-based payment transaction
Risk-free interest rate	3.88%	6.96%

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2019-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2019-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2019-03-27

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- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

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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.

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No definition available.

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- Definition

The percentage of an expected dividend used to calculate the fair value of share options granted.

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