Segment Information (Tables)

6 Months Ended

Jun. 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 June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Net sales:
Environmental Solutions	$	281.3	$	214.2	$	509.4	$	447.2
Safety and Security Systems	53.4		55.9		104.1		109.0
Total net sales	$	334.7	$	270.1	$	613.5	$	556.2
Operating income (loss):
Environmental Solutions	$	38.5	$	28.6	$	65.6	$	58.0
Safety and Security Systems	7.8		10.4		15.0		17.8
Corporate and eliminations	(7.8)		(7.7)		(14.3)		(12.2)
Total operating income	38.5		31.3		66.3		63.6
Interest expense	1.1		1.8		2.2		3.3
Other (income) expense, net	(0.3)		2.0		(0.8)		2.2
Income before income taxes	$	37.7	$	27.5	$	64.9	$	58.1

(in millions)	As of June 30, 2021		As of December 31, 2020
Total assets:
Environmental Solutions	$	1,021.2	$	926.8
Safety and Security Systems	221.2		225.5
Corporate and eliminations	46.8		56.3
Total assets of continuing operations	1,289.2		1,208.6
Total assets of discontinued operations	0.2		0.2
Total assets	$	1,289.4	$	1,208.8