Summary of Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

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		CWT		Total
Balance as of December 31, 2021	$	2.1	$	1.0	$	3.1
Current period provision	0.7		1.7		2.4
Amounts written off	(0.4)		(0.1)		(0.5)
Balance as of December 31, 2022	$	2.4	$	2.6	$	5.0
Current period provision	0.1		(0.4)		(0.3)
Amounts written off	(0.2)		(0.6)		(0.8)
Balance as of December 31, 2023	$	2.3	$	1.6	$	3.9