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Restructuring Charges (Schedule Of Components Of Restructuring Charges) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Restructuring Cost and Reserve [Line Items] |  |  |
Total restructuring charges | $ 12,900 | $ 8,507 |
2020 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs | 8,171 |  |
Lease facility costs | 165 |  |
Other exit costs | 733 |  |
Total restructuring charges | 9,069 |  |
2019 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs |  | 6,449 |
Other exit costs |  | 1,597 |
Total restructuring charges | 3,831 | 8,046 |
2018 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs |  |  | $ 2,815
Other exit costs |  |  | 1,773
Total restructuring charges |  | 461 | 4,588
Americas [Member] | 2020 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs | 6,977 |  |
Lease facility costs | 165 |  |
Other exit costs | 733 |  |
Total restructuring charges | 7,875 |  |
Americas [Member] | 2019 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs |  | 4,499 |
Other exit costs |  | 1,561 |
Total restructuring charges |  | 6,060 |
Americas [Member] | 2018 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs |  |  | 2,496
Other exit costs |  |  | 1,773
Total restructuring charges |  |  | 4,269
Asia [Member] | 2020 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs | 1,181 |  |
Total restructuring charges | 1,181 |  |
Asia [Member] | 2019 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs |  | 1,950 |
Other exit costs |  | 36 |
Total restructuring charges |  | $ 1,986 |
Asia [Member] | 2018 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs |  |  | 274
Total restructuring charges |  |  | 274
Europe [Member] | 2020 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs | 13 |  |
Total restructuring charges | $ 13 |  |
Europe [Member] | 2018 [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Severance costs |  |  | 45
Total restructuring charges |  |  | $ 45

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