Restructuring and Impairment Charges (Components of Restructuring and Impairment Charges) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
Sep. 30, 2020	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Restructuring and Impairment Charges [Abstract]
Impairment and loss on right of use asset	$ 17,540		$ 1,999
Impairment and loss on disposal of machinery and equipment		$ 269		$ 438
Employee severance and retention		(57)		(4)
Other charges related to facility closure		6,438		446
Total restructuring and impairment charges		$ 6,650		$ 880

Impairment And Gain Loss On Sale Of Property Plant Equipment

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- Definition

Amount of loss from impairment of right-of-use asset from operating lease.

+ References

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- Definition

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

+ References

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- References

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Amount of restructuring charges, remediation cost, and asset impairment loss.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

+ References

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