Stock Compensation and Share Repurchase Plan (Summary Of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options Outstanding, Balance, beginning of period	981	1,850	2,151
Options Outstanding, Granted	440	0	20
Options Outstanding, Exercised	(572)	(515)	(174)
Options Outstanding, Forfeited/expired	(42)	(354)	(147)
Options Outstanding, Balance, end of period	807	981	1,850
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Avg Exercise Price, Balance beginning of period	$ 16.17	$ 15.37	$ 14.48
Weighted-Avg Exercise Price, Granted	$ 12.12	$ 0.00	$ 11.98
Weighted-Avg Exercise Price, Exercised	$ 11.93	$ 12.42	$ 5.63
Weighted-Avg Exercise Price, Forfeited/expired	$ 19.28	$ 17.46	$ 13.45
Weighted Avg Exercise Price, Balance, end of period	$ 16.80	$ 16.17	$ 15.37
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options exercisable, end of year, Options Outstanding	676	627	1,263
Options exercisable, end of year, Weighted Avg. Exercise Price	$ 17.71	$ 18.86	$ 17.11

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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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For presentations that combine terminations, 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 or that expired.

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Weighted average price of options that were either forfeited or expired.

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

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

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

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

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