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Subsequent Events Subsequent Events (Notes)	12 Months Ended
Subsequent Events Subsequent Events (Notes)	Dec. 31, 2018
Subsequent Event [Line Items]
Subsequent Events [Text Block]	Subsequent Events On January 11, 2019, the Company acquired Plastic Srl, a manufacturer of single-bodied and assembled polymeric caps and closures for use in home care product applications. Plastic Srl, located in Forli, Italy, serves the home care market in Italy and other European countries and generates approximately $12 million in annual revenue. Plastic Srl will be included in the Company's Packaging reportable segment. On February 28, 2019, the Company announced that its Board of Directors increased the Company’s common stock share repurchase authorization to $75 million in the aggregate of the Company's common stock. The previous authorization, approved in November 2015, authorized up to $50 million in share repurchases. The increased authorization includes the value of shares already purchased under the previous authorization.