Summary of Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule for Company's Allowance for Doubtful Accounts

Changes in the Company's allowance for credit losses by segment follows:

(in millions)	CCM		CIT		CFT		Corporate		Total
Balance as of December 31, 2019	$	2.2	$	1.6	$	1.1	$	0.5	$	5.4
Current period provision	0.8		0.1		0.1		—		1.0
Amounts written off	(0.6)		(0.4)		(0.4)		—		(1.4)
Balance as of December 31, 2020	$	2.4	$	1.3	$	0.8	$	0.5	$	5.0
Current period provision	1.1		(0.1)		0.2		—		1.2
Amounts acquired	0.3		—		—		—		0.3
Amounts written off	(0.7)		—		—		(0.5)		(1.2)
Balance as of December 31, 2021	$	3.1	$	1.2	$	1.0	$	—	$	5.3