Segment Information (Tables)

12 Months Ended

Dec. 31, 2016

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)	2016			2015			2014
Net sales:
Environmental Solutions	$	490.7		$	534.1		$	536.6
Safety and Security Systems	217.2			233.9			242.5
Total net sales	$	707.9		$	768.0		$	779.1
Operating income:
Environmental Solutions	$	54.1		$	96.9		$	81.9
Safety and Security Systems	27.0			32.3			32.1
Corporate and eliminations	(23.4		)	(26.0		)	(25.3		)
Total operating income	57.7			103.2			88.7
Interest expense	1.9			2.3			3.6
Debt settlement charges	0.3			—			—
Other (income) expense, net	(1.3		)	1.0			1.7
Income before income taxes	$	56.8		$	99.9		$	83.4

(in millions)	2016		2015		2014
Depreciation and amortization:
Environmental Solutions	$	14.5	$	7.3	$	6.8
Safety and Security Systems	4.4		4.8		4.5
Corporate	0.2		0.2		0.2
Total depreciation and amortization	$	19.1	$	12.3	$	11.5

(in millions)	2016		2015		2014
Total assets:
Environmental Solutions	$	393.3	$	250.6	$	254.2
Safety and Security Systems	200.1		209.6		208.3
Corporate and eliminations	48.7		99.2		69.0
Total assets of continuing operations	642.1		559.4		531.5
Total assets of discontinued operations	1.1		107.1		127.2
Total assets	$	643.2	$	666.5	$	658.7

(in millions)	2016		2015		2014
Capital expenditures:
Environmental Solutions	$	3.7	$	4.5	$	6.2
Safety and Security Systems	1.8		3.9		6.3
Corporate	0.6		1.2		1.2
Total capital expenditures	$	6.1	$	9.6	$	13.7

Schedule Of Segment Reporting Information By Geographical Segment Table [Text Block]

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

(in millions)	2016		2015		2014
Net sales:
U.S.	$	510.2	$	576.8	$	580.6
Canada	111.5		75.9		67.1
Europe/Other	86.2		115.3		131.4
Total net sales	$	707.9	$	768.0	$	779.1