Summary of Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

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		CBF		Corporate		Total
Balance as of December 31, 2018	$	2.4	$	1.0	$	0.5	$	1.2	$	—	$	5.1
Current period provision	—		0.8		0.1		—		0.5		1.4
Amounts acquired	0.1		—		0.5		—		—		0.6
Amounts written off	(0.3)		(0.2)		—		—		—		(0.5)
Balance as of December 31, 2019	$	2.2	$	1.6	$	1.1	$	1.2	$	0.5	$	6.6
Current period provision	0.8		0.1		0.1		0.6		—		1.6
Amounts written off	(0.6)		(0.4)		(0.4)		—		—		(1.4)
Balance as of December 31, 2020	$	2.4	$	1.3	$	0.8	$	1.8	$	0.5	$	6.8