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Stock-based Compensation (Schedule of Weighted Average Assumptions for Option Awards) (Details) - $ / shares	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Weighted average assumptions to calculation option fair value
Dividend yield	4.54%	3.85%
Expected stock price volatility	24.07%	29.70%
Risk-free interest rate	2.04%	1.84%
Expected option life (in years)	4 years 9 months 18 days	4 years 7 months 6 days
Weighted average fair value per share of options granted during the period	$ 2.95	$ 4.64

X

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
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- References

No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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