Restructuring Activities (Tables)

3 Months Ended

Mar. 31, 2019

Restructuring and Related Activities [Abstract]

Summary of Severance and Other Restructuring Costs

The following table is a summary of the severance and other restructuring costs, which included employee-related costs, facility rent and exit costs, relocation, recruiting, travel and other, for the three months ended March 31, 2019 and 2018:

	Three Months Ended March 31,
	2019		2018
Severance:
Cost of sales	$	0.5	$	—
Selling, general, and administrative expenses	1.0		0.5
Total severance costs	1.5		0.5
Other restructuring:
Cost of sales	5.0		0.3
Selling, general, and administrative expenses	0.9		0.1
Total other restructuring costs	5.9		0.4
Total restructuring costs	$	7.4	$	0.9

Rollforward of Restructuring Cost

The following tables summarize our restructuring activities for the three months ended March 31, 2019 and 2018:

	Three Months Ended March 31, 2019
	Energy & Chemicals			D&S West		D&S East			Corporate			Consolidated
Balance as of December 31, 2018	$	—		$	—	$	0.8		$	0.1		$	0.9
Restructuring costs	4.5			0.3		2.4			0.2			7.4
Property, plant and equipment impairment and disposals	(3.2		)	—		(1.7		)	—			(4.9		)
Cash payments and other	(0.6		)	—		(0.5		)	(0.2		)	(1.3		)
Balance as of March 31, 2019	$	0.7		$	0.3	$	0.8		$	0.1		$	1.9

	Three Months Ended March 31, 2018
	Energy & Chemicals			D&S West			D&S East			Corporate			Consolidated
Balance as of December 31, 2017	$	0.2		$	1.2		$	0.2		$	1.1		$	2.7
Restructuring costs	0.2			—			0.2			0.5			0.9
Cash payments	(0.2		)	(1.2		)	(0.4		)	(0.2		)	(2.0		)
Balance as of March 31, 2018	$	0.2		$	—		$	—		$	1.4		$	1.6