Segments - Net Sales and Adjusted EBITDA by Segment Reporting Structure (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Net sales	$ 1,131.0	$ 1,032.2
Adjusted EBITDA from continuing operations	$ 204.8	$ 181.9
Adjusted EBITDA Margin	18.10%	17.60%
Food Care
Segment Reporting Information [Line Items]
Net sales	$ 696.3
Adjusted EBITDA Margin	19.30%	18.60%
Food Care | Product Concentration Risk | Net Sales
Segment Reporting Information [Line Items]
As a % of Total Company net sales	61.60%	63.50%
Product Care
Segment Reporting Information [Line Items]
Net sales	$ 434.7
Adjusted EBITDA Margin	18.00%	16.80%
Product Care | Product Concentration Risk | Net Sales
Segment Reporting Information [Line Items]
As a % of Total Company net sales	38.40%	36.50%
Operating Segments | Food Care
Segment Reporting Information [Line Items]
Net sales	$ 696.3	$ 655.6
Adjusted EBITDA from continuing operations	134.7	122.0
Operating Segments | Product Care
Segment Reporting Information [Line Items]
Net sales	434.7	376.6
Adjusted EBITDA from continuing operations	78.4	63.3
Corporate
Segment Reporting Information [Line Items]
Adjusted EBITDA from continuing operations	$ (8.3)	$ (3.4)