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Restructuring and Impairment Charges (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Aug. 01, 2019	Jul. 22, 2019
Restructuring Cost and Reserve [Line Items]
Goodwill impairment	$ 21,521	$ 21,521
Employee severance and facility closure costs	$ 1,400	$ 1,400
Weighted-average cost of capital			16.00%
Maximum [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Cost estimate for implementing program				$ 4,500
Minimum [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Cost estimate for implementing program				$ 3,500

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Amount expected to be recognized in earnings for the specified restructuring cost.

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