Segment Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Summary of Continuing Operations by Segment

The following tables summarize the Company’s continuing operations by segment, including net sales, operating income, depreciation and amortization, total assets and capital expenditures:

(in millions)	2017			2016			2015
Net sales:
Environmental Solutions	$	692.6		$	490.7		$	534.1
Safety and Security Systems	205.9			217.2			233.9
Total net sales	$	898.5		$	707.9		$	768.0
Operating income:
Environmental Solutions	$	72.4		$	54.1		$	96.9
Safety and Security Systems	27.0			27.0			32.3
Corporate and eliminations (a)	(32.3		)	(23.4		)	(26.0		)
Total operating income	67.1			57.7			103.2
Interest expense	7.3			1.9			2.3
Debt settlement charges	—			0.3			—
Other (income) expense, net	(1.2		)	(1.3		)	1.0
Income before income taxes	$	61.0		$	56.8		$	99.9

(a) Corporate operating expenses in the year ended December 31, 2017 include pension settlement charges of $6.1 million, as disclosed in Note 9 – Pensions.

(in millions)	2017		2016		2015
Depreciation and amortization:
Environmental Solutions	$	25.7	$	14.5	$	7.3
Safety and Security Systems	4.1		4.4		4.8
Corporate	0.2		0.2		0.2
Total depreciation and amortization	$	30.0	$	19.1	$	12.3

(in millions)	2017		2016		2015
Total assets:
Environmental Solutions	$	746.4	$	393.3	$	250.6
Safety and Security Systems	211.8		200.1		209.6
Corporate and eliminations	33.6		48.7		99.2
Total assets of continuing operations	991.8		642.1		559.4
Total assets of discontinued operations	0.5		1.1		107.1
Total assets	$	992.3	$	643.2	$	666.5

(in millions)	2017		2016		2015
Capital expenditures:
Environmental Solutions	$	5.2	$	3.7	$	4.5
Safety and Security Systems	2.2		1.8		3.9
Corporate	0.6		0.6		1.2
Total capital expenditures	$	8.0	$	6.1	$	9.6

Schedule Of Segment Reporting Information By Geographical Segment Table

The following table summarizes net sales by geographic region based on the location of the end customer:

(in millions)	2017		2016		2015
Net sales:
U.S.	$	674.1	$	510.2	$	576.8
Canada	142.6		111.5		75.9
Europe/Other	81.8		86.2		115.3
Total net sales	$	898.5	$	707.9	$	768.0

The following table summarizes long-lived assets (excluding deferred tax and intangible assets) by geographic region based on the location of the Company’s subsidiaries:

(in millions)	2017		2016		2015
Long-lived assets (excluding deferred tax and intangible assets):
U.S.	$	97.0	$	78.7	$	53.3
Canada	52.3		46.1		—
Europe	3.1		2.5		2.6
Other	0.3		0.3		0.3
Total long-lived assets	$	152.7	$	127.6	$	56.2