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Assets Held For Sale	12 Months Ended
Assets Held For Sale	Dec. 31, 2016
Assets Held For Sale [Abstract]
Assets Held For Sale	Assets Held for Sale At December 31, 2016, the company classified $4,119 of net properties, plant and equipment as “Assets held for sale” on the Consolidated Balance Sheet. These assets are associated with upstream operations that are anticipated to be sold in the next 12 months. The revenues and earnings contributions of these assets in 2016 were not material.