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Exit Activity Costs and Asset Impairments (Narrative) (Details) - facility | 6 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017
Restructuring and Related Activities [Abstract] |  |
Number of facilities closed | 1 | 3

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- Definition Restructuring and Related Cost, Number of Facilities to be Closed + References No definition available. + Details
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- References No definition available. + Details
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