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Income Taxes (Schedule Of Unrecognized Uncertain Tax Positions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	$ 1,962	$ 3,315	$ 4,049
Increase (decrease) due to tax positions taken in, Current period	13	27	1,151
Increase (decrease) due to tax positions taken in, Prior period	1,430	(532)	43
Increase (decrease) due to settlements with taxing authorities	0	(51)	(1,706)
Reductions due to lapse of statute of limitations	(44)	(797)	(222)
Balance at end of period	$ 3,361	$ 1,962	$ 3,315

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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- Definition

Amount of unrecognized tax benefits.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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