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Income Taxes (Schedule Of Federal Statutory Income Tax Rate To Income Before Income Tax) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Disclosure [Abstract] |  |  |  |
Tax at statutory rate | $ 3,632 | $ 5,727 | $ 11,664 |
State taxes, net of federal tax effect | (788) | (1,705) | 7,553 |
Effect of foreign operations and tax incentives | (6,372) | (5,870) | (11,945) |
Change in valuation allowance | (3,029) | (2,283) | 2,114 |
Stock-based compensation | 347 | 118 | (143) |
Provisional impact of U.S. Tax Reform |  |  | (4,353) | $ 97,700
Impact of cash repatriation |  |  | 21,612 |
GILTI | 1,667 | 955 | 3,206 |
Losses in foreign jurisdictions for which no benefit has been provided | 5,798 | 4,379 | 1,423 |
Change in uncertain tax benefits reserve | (31) | 200 | (317) |
Other | 2,014 | 2,323 | 1,910 |
Total income tax expense | $ 3,238 | $ 3,844 | $ 32,724 |

X
- Definition Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to the provision of the Tax Cuts and Jobs Act, Global Intangible Low-Taxed Income. + References No definition available. + Details
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- Definition Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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- Definition Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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