Other Operating Expense (Tables)

12 Months Ended

Dec. 31, 2017

The components of “Other operating expense, net” for the years ended December 31, 2017, 2016 and 2015 are as follows.

	For the Years Ended December 31,
	2017		2016			2015
Other Operating Expense, Net
Foreign currency transaction losses (gains), net	$	9.3	$	(5.9	)	$	1.1
Restructuring charges ⁽¹⁾		5.3		32.9			4.7
Environmental remediation expenses⁽²⁾		0.9		5.6			-
Stock-based compensation⁽³⁾		194.2		-			-
Other, net		12.4		16.0			14.9
Total other operating expense, net	$	222.1	$	48.6		$	20.7

⁽¹⁾

See Note 4 “Restructuring.”

⁽²⁾

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

⁽³⁾

Represents stock-based compensation expense recognized for stock options outstanding ($77.6 million) and DSUs granted to employees at the date of the initial public offering ($97.4 million) under the 2013 Stock Incentive Plan, and employer taxes related to DSUs granted to employees at the date of the initial public offering ($19.2 million).