Restructuring and Impairment Charges (Schedule Of Restructuring Reserve Activity) (Details) - Manufacturing And Corporate And Other [Member] - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Accrued	$ 1,006
Cash Charges	6,578	$ 1,892
Non-cash charges	11,747	20,479
Cash payments	(5,737)	(886)
Accrued	1,847	1,006
Impairment And Loss On Right Of Use Assets [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash charges	17,540
Impairment Charges For Leasehold Improvements And Equipment [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash charges	9,527	1,381
Lease Termination Gain [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash charges	(15,200)	(2,445)
Employee Severance And Retention [Member]
Restructuring Cost and Reserve [Line Items]
Accrued	647
Cash Charges	3,285	1,332
Cash payments	(2,336)	(685)
Accrued	1,596	647
Other Charges Related To Facility Closure [Member]
Restructuring Cost and Reserve [Line Items]
Accrued	359
Cash Charges	3,293	560
Non-cash charges	(120)	22
Cash payments	(3,401)	(201)
Accrued	$ 251	359
Goodwill Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash charges		$ 21,521

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

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-Publisher FASB
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- Definition

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

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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

No definition available.

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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

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