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Restructuring and Impairment Charges (Schedule Of Restructuring Reserve Activity) (Details) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Restructuring Cost and Reserve [Line Items] |  |
Accrued | $ 163 | $ 1,847
Cash Charges | 0 | 6,437
Non-cash charges | 0 | 93
Cash payments | (163) | (7,926)
Accrued |  | 278
Impairment And Loss On Right Of Use Asset [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Accrued | 0 | 0
Non-cash charges |  | 269
Accrued | 0 | 0
Employee Severance And Retention [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Accrued | 163 | 1,596
Non-cash charges | 0 | (80)
Cash payments | (163) | (1,238)
Accrued |  | 278
Other Charges Related To Facility Closure [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Accrued | 0 | 251
Cash Charges |  | 6,437
Non-cash charges |  | (96)
Cash payments |  | (6,688)
Accrued | $ 0 |

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3367-108585 + Details
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