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Income Taxes (Schedule Of Uncertain Tax Position Liability And Liability For Interest And Penalties On Uncertain Tax Positions) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Taxes [Abstract] |  |  |
Beginning balance | $ 3,523 | $ 3,889 | $ 4,328
Increases related to current year tax positions | 473 | 691 | 368
Decreases due to the lapsing of statutes of limitations | (1,703) | (880) | (467)
Decreases related to prior year tax positions | (238) | (154) |
Decreases for foreign exchange differences |  | (22) |
Increases for foreign exchange differences | 99 |  | 16
Increases related to prior year tax positions | 420 |  | 249
Decreases related to prior year tax positions |  | (1) |
Decreases related to settlements |  |  | (605)
Ending balance | 2,574 | 3,523 | 3,889
Beginning Balance | 434 | 402 | 315
Accrual of interest and penalties | 81 | 227 | 161
Decreases related to prior year tax positions | (254) | (195) | (74)
Ending Balance | $ 261 | $ 434 | $ 402

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=120406818&loc=SL37586934-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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