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Segment Information (Reconciliation of Assets from Segment to Consolidated) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Total Operating Assets	$ 308,242	$ 285,643
Consolidated income taxes receivable	238	815
Consolidated deferred income taxes, long-term	14,256	9,446
Consolidated income taxes receivable, long-term	1,767
Total assets	324,503	295,904
Manufacturing [Member]
Segment Reporting Information [Line Items]
Total Operating Assets	228,634	136,448
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Total Operating Assets	$ 79,608	$ 149,195

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Aggregate amount of assets used to generate operating income.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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