Recent Accounting Pronouncements (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating income	[1]	$ (58.7)	$ (55.7)	$ (113.4)	$ (107.6)
Accounting Standards Update 2017-07 | Pro Forma
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating income							$ 8.0
Accounting Standards Update 2017-07 | Scenario, Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating income						$ 8.0
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount				$ 5.5

[1] Operating income as presented in the segment table above is defined as i) net sales; ii) less cost of products sold; iii) less advertising, selling, general and administrative expenses; iv) less amortization of intangibles; and v) less restructuring charges.