Segment Information (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Summary of Net Sales, Operating Income (Loss), and Total Assets by Segment

The following tables summarize the Company’s continuing operations by segment, including Net sales, Operating income (loss), and Total assets:

	Three Months Ended   June 30,						Six Months Ended   June 30,
(in millions)	2018			2017			2018			2017
Net sales:
Environmental Solutions	$	233.3		$	174.3		$	429.9		$	302.1
Safety and Security Systems	57.7			50.1			110.8			100.1
Total net sales	$	291.0		$	224.4		$	540.7		$	402.2
Operating income (loss):
Environmental Solutions	$	37.2		$	21.0		$	57.8		$	31.3
Safety and Security Systems	8.2			5.6			14.3			12.0
Corporate and eliminations	(7.3		)	(7.8		)	(14.4		)	(13.1		)
Total operating income	38.1			18.8			57.7			30.2
Interest expense	2.5			1.3			5.0			1.9
Other expense (income), net	0.4			(0.1		)	0.5			(0.3		)
Income before income taxes	$	35.2		$	17.6		$	52.2		$	28.6

(in millions)	As of   June 30, 2018		As of December 31, 2017
Total assets:
Environmental Solutions	$	776.8	$	746.4
Safety and Security Systems	210.4		211.8
Corporate and eliminations	28.5		33.6
Total assets of continuing operations	1,015.7		991.8
Total assets of discontinued operations	0.5		0.5
Total assets	$	1,016.2	$	992.3