Stock-Based Compensation (Schedule Of Stock Option Plans) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
Dec. 31, 2018	Jun. 30, 2018	Jun. 30, 2017
Stock-Based Compensation [Abstract]
Shares, Outstanding and exercisable	166	187
Shares, Granted	66	21
Shares, Exercised	(4)	(21)
Shares, Canceled	(7)	(21)
Shares, Outstanding and exercisable	221	166
Weighted Average Exercise Price, Oustanding and exercisable	$ 30.65	$ 27.21
Weighted Average Exercise Price, Granted	27.87	45.21
Weighted Average Exercise Price, Exercised	13.81	18.89
Weighted Average Exercise Price, Canceled	36.58	26.77
Weighted Average Exercise Price, Oustanding and exercisable	$ 29.90	$ 30.65
Aggregate Intrinsic Value	$ 246	$ 1,841	$ 5,039

No definition available.

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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- Definition

Net number of share options (or share units) granted during the period.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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- Definition

Number of share options (or share units) exercised during the current period.

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