Segment Information (Tables)

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

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

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

	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2021		2020		2021		2020
Net sales:
Environmental Solutions	$	249.1	$	231.0	$	758.5	$	678.2
Safety and Security Systems	49.2		48.8		153.3		157.8
Total net sales	$	298.3	$	279.8	$	911.8	$	836.0
Operating income (loss):
Environmental Solutions	$	30.8	$	33.0	$	96.4	$	91.0
Safety and Security Systems	7.6		7.4		22.6		25.2
Corporate and eliminations	(4.1)		(6.4)		(18.4)		(18.6)
Total operating income	34.3		34.0		100.6		97.6
Interest expense	1.1		1.2		3.3		4.5
Other (income) expense, net	(0.3)		(0.1)		(1.1)		2.1
Income before income taxes	$	33.5	$	32.9	$	98.4	$	91.0

(in millions)	As of September 30, 2021		As of December 31, 2020
Total assets:
Environmental Solutions	$	1,015.0	$	926.8
Safety and Security Systems	220.4		225.5
Corporate and eliminations	78.2		56.3
Total assets of continuing operations	1,313.6		1,208.6
Total assets of discontinued operations	0.2		0.2
Total assets	$	1,313.8	$	1,208.8