Restructuring and Impairment Charges (Schedule Of Restructuring Reserve Activity) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Accrued	$ 1,847	$ 1,006
Cash Charges	6,437	6,578
Non-cash charges	93	11,747
Cash payments	(8,041)	(5,737)
Accrued	163	1,847
Impairment And Loss On Right Of Use Assets [Member]
Restructuring Cost and Reserve [Line Items]
Accrued
Cash Charges
Non-cash charges		17,540
Cash payments
Accrued
Impairment And Loss On Disposal Of Machinery And Equipment [Member]
Restructuring Cost and Reserve [Line Items]
Accrued
Cash Charges
Non-cash charges	269	9,527
Cash payments
Accrued
Lease Termination Gain [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash charges		(15,200)
Employee Severance And Retention [Member]
Restructuring Cost and Reserve [Line Items]
Accrued	1,596	647
Cash Charges		3,285
Non-cash charges	(80)
Cash payments	(1,353)	(2,336)
Accrued	163	1,596
Other Charges Related To Facility Closure [Member]
Restructuring Cost and Reserve [Line Items]
Accrued	251	359
Cash Charges	6,437	3,293
Non-cash charges	(96)	(120)
Cash payments	(6,688)	(3,401)
Accrued		$ 251

Restructuring Reserve, Non-Cash Charges

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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
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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