Stock-based Compensation Plans (Summary Of Stock Option Activity) (Details)	12 Months Ended
Dec. 31, 2018 $ / shares shares
Stock-based Compensation Plans [Abstract]
Options outstanding, January 1, 2018, Shares \| shares	636
Options outstanding, granted, Shares \| shares
Options, Outstanding, Exercised, Shares \| shares
Options outstanding, forfeited or expired, Shares \| shares	(636)
Options outstanding, December 31, 2018, Shares \| shares
Options exercisable, December 31, 2018, Shares \| shares
Options outstanding, January 1, 2018, Weighted Average Exercise Price \| $ / shares	$ 12.79
Options outstanding, granted, Weighted Average Exercise Price \| $ / shares
Options outstanding, exercised, Weighted Average Exercise Price \| $ / shares
Options outstanding, forfeited or expired, Weighted Average Exercise Price \| $ / shares	12.79
Options outstanding, December 31, 2018, Weighted Average Exercise Price \| $ / shares
Options exercisable, December 31, 2018, Weighted Average Exercise Price \| $ / shares
Options outstanding, December 31, 2018, Weighted Average Remaining Contractual Life (in years)	0 years
Options exercisable, December 31, 2018, Weighted Average Remaining Contractual Life (in years)	0 years

No definition available.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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

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No definition available.

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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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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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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