Restructuring Activities (Tables)

6 Months Ended

Jun. 30, 2018

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 and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Severance:
Cost of sales	$	—	$	0.1	$	0.1	$	0.7
Selling, general, and administrative expenses	0.2		1.1		0.7		1.8
Total severance costs	0.2		1.2		0.8		2.5
Other restructuring:
Cost of sales	0.4		2.0		0.6		3.8
Selling, general, and administrative expenses	—		1.8		0.1		3.3
Total other restructuring costs	0.4		3.8		0.7		7.1
Total restructuring costs	$	0.6	$	5.0	$	1.5	$	9.6

Rollforward of Restructuring Cost

The following tables summarize our restructuring activities for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30, 2018
	Energy & Chemicals			Distribution & Storage			BioMedical		Corporate			Total
Balance as of March 31, 2018	$	0.2		$	0.1		$	0.2	$	1.4		$	1.9
Restructuring costs	0.2			0.3			—		0.1			0.6
Cash payments	(0.4		)	(0.3		)	—		(1.5		)	(2.2		)
Balance as of June 30, 2018	$	—		$	0.1		$	0.2	$	—		$	0.3

	Three Months Ended June 30, 2017
	Energy & Chemicals			Distribution & Storage			BioMedical			Corporate			Total
Balance as of March 31, 2017	$	—		$	2.3		$	1.4		$	2.9		$	6.6
Restructuring costs	1.6			0.3			1.4			1.7			5.0
Cash payments	(1.6		)	(0.7		)	(2.0		)	(3.1		)	(7.4		)
Balance as of June 30, 2017	$	—		$	1.9		$	0.8		$	1.5		$	4.2

	Six Months Ended June 30, 2018
	Energy & Chemicals			Distribution & Storage			BioMedical			Corporate			Total
Balance as of December 31, 2017	$	0.2		$	1.2		$	0.3		$	1.1		$	2.8
Restructuring costs	0.4			0.5			—			0.6			1.5
Cash payments	(0.6		)	(0.9		)	(0.1		)	(1.7		)	(3.3		)
Change in estimates	—			(0.7		)	—			—			(0.7		)
Balance as of June 30, 2018	$	—		$	0.1		$	0.2		$	—		$	0.3

	Six Months Ended June 30, 2017
	Energy & Chemicals			Distribution & Storage			BioMedical			Corporate			Total
Balance as of December 31, 2016	$	0.1		$	2.9		$	1.3		$	3.0		$	7.3
Restructuring charges	2.1			0.4			4.0			3.1			9.6
Cash payments and other	(2.2		)	(1.4		)	(4.5		)	(4.6		)	(12.7		)
Balance as of June 30, 2017	$	—		$	1.9		$	0.8		$	1.5		$	4.2