Supplemental Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018		Mar. 31, 2017
Other Operating Expense, Net [Abstract]
Foreign currency transaction losses, net		$ 2.6		$ 0.6
Restructuring charges, net	[1]	0.0		1.7
Environmental remediation expenses	[2]	0.0		1.0
Stock-based compensation expense		2.7	[3]	0.0
Shareholder litigation settlement recoveries	[4]	(4.5)		0.0
Acquisition related expenses and non-cash charges	[5]	3.0		0.8
(Gains) losses on asset and business disposals		(1.2)		3.0
Other, net		1.7		0.8
Total other operating expense, net		4.3		$ 7.9
Stock-based compensation expense recognized		3.4
Decrease in stock-based compensation expense to DSU's		$ 0.7

[1] See Note 3 "Restructuring."

[2] Estimated environmental remediation costs recorded on an undiscounted basis for a former production facility.

[3] Represents stock-based compensation expense recognized for the three month period ended March 31, 2018 of $3.4 million reduced by a $0.7 million decrease in the accrual for employer taxes related to DSUs granted to employees at the date of the initial public offering. Prior to the Company's initial public offering which occurred in May 2017, no stock-based compensation expense was recorded because the Company's repurchase rights created an implicit service period.

[4] Represents an insurance recovery of the Company' shareholder litigation settlement in 2014.

[5] Represents costs associated with successful and/or abandoned acquisitions, including third-party expenses, post-closure integration costs and non-cash charges and credits arising from fair value purchase accounting adjustments.