Common Stock and Stock-Based Awards Plans (Summary Of Stock Options) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity [Abstract]
Number of Options, Outstanding, Beginning balance	188	270	374
Number of Options, Exercised	(54)	(76)	(100)
Number of Options, Forfeited or expired	(2)	(6)	(4)
Number of Options, Outstanding, Ending balance	132	188	270
Weighted-Average Exercise Price, Outstanding, Beginning balance	$ 19.98	$ 20.02	$ 20.35
Weighted-Average Exercise Price, Exercised	19.77	19.87	21.21
Weighted-Average Exercise Price, Forfeited or expired	20.16	23.08	21.29
Weighted-Average Exercise Price, Outstanding, Ending balance	$ 20.06	$ 19.98	$ 20.02
Weighted-Average Remaining Contractual Term (Years), Outstanding	1 year 8 months 26 days
Aggregate Intrinsic Value, Outstanding	$ 926

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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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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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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 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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