SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Reconciliation of Weighted-Average Outstanding Shares used in Calculations of Basic and Diluted EPS

A reconciliation of the weighted-average outstanding shares used in the two calculations is as follows: 

	Three Months Ended September 30,		Nine Months Ended September 30,
	2023	2022	2023	2022
	(In millions)
Weighted-average shares outstanding (basic)	123.0	122.4	122.7	122.3
Effect of dilutive securities:
Stock options and restricted stock units	0.9	0.9	0.9	1.0
Weighted-average shares outstanding (diluted)	123.9	123.3	123.6	123.3

Rollforward of Allowance for Doubtful Accounts

Below is a rollforward of our allowance for doubtful accounts for the three and nine months ended September 30, 2023 and 2022, respectively.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
	(In millions)
Allowance for doubtful accounts, beginning of period	$	17.0	$	15.6	$	19.1	$	13.9
Current period bad debt expense	3.6		1.4		8.8		4.4
Write-offs, net of recoveries	(2.3)		(1.5)		(9.6)		(2.8)
Allowance for doubtful accounts, end of period	$	18.3	$	15.5	$	18.3	$	15.5