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Subsequent Event	12 Months Ended
Subsequent Event	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event Effective January 1, 2018, the electrical/electronic materials segment became a division of the industrial segment. These two reportable segments will become a single reporting segment in 2018 and prospectively. The Company's reportable segments will consist of the automotive, industrial, and business products segments and segment data will be presented under this new basis for all interim and annual periods beginning in 2018.