Special Charges, Net (Tables)

12 Months Ended

Dec. 31, 2021

Restructuring and Related Activities [Abstract]

Schedule of Special Charges by Expense Type

Special charges for the years ended December 31, 2021, 2020 and 2019 are described in more detail below and in the applicable sections that follow:

	Years Ended December 31,
	2021		2020		2019
Employee termination costs	$	1.0	$	1.0	$	0.5
Facility consolidation costs	—		—		0.5
Other cash costs, net	—		1.0		—
Non-cash asset write-downs	—		0.4		0.5
Total	$	1.0	$	2.4	$	1.5

Schedule of Special Charges

2021 Charges:

	Employee Termination Costs		Facility Consolidation Costs		Other Cash Costs, Net		Non-Cash Asset Write-downs		Total Special Charges
HVAC reportable segment	$	0.1	$	—	$	—	$	—	$	0.1
Detection and Measurement reportable segment	0.9		—		—		—		0.9
Corporate	—		—		—		—		—
Total	$	1.0	$	—	$	—	$	—	$	1.0

2020 Charges:

	Employee Termination Costs		Facility Consolidation Costs		Other Cash Costs, Net		Non-Cash Asset Write-downs		Total Special Charges
HVAC reportable segment	$	0.5	$	—	$	—	$	—	$	0.5
Detection and Measurement reportable segment	0.3		—		—		—		0.3
Corporate	0.2		—		1.0		0.4		1.6
Total	$	1.0	$	—	$	1.0	$	0.4	$	2.4

2019 Charges:

	Employee Termination Costs		Facility Consolidation Costs		Other Cash Costs, Net		Non-Cash Asset Write-downs		Total Special Charges
HVAC reportable segment	$	0.3	$	0.5	$	—	$	0.5	$	1.3
Detection and Measurement reportable segment	—		—		—		—		—
Corporate	0.2		—		—		—		0.2
Total	$	0.5	$	0.5	$	—	$	0.5	$	1.5

Schedule of the Analysis of the Company's Restructuring Liabilities

The following is an analysis of our restructuring liabilities for the years ended December 31, 2021, 2020 and 2019:

	2021		2020		2019
Balance at beginning of year	$	0.9	$	0.4	$	0.8
Special charges(1)	1.0		2.0		1.0
Utilization — cash	(1.6)		(1.5)		(1.4)
Balance at the end of year	$	0.3	$	0.9	$	0.4

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(1)The years ended December 31, 2021, 2020 and 2019 excluded $0.0, $0.4 and $0.5, respectively, of non-cash charges that impacted special charges but not the restructuring liabilities.