Allowance for Doubtful Accounts (Tables)

12 Months Ended

Dec. 31, 2020

Allowance for Doubtful Accounts

Schedule of the components for allowance for doubtful accounts

The following is a summary of the components for allowance for doubtful accounts (in millions):

Balance at December 31, 2017	$	4.7
Additions		0.8
Deductions		(1.7)
Balance at December 31, 2018		3.8
Additions		1.5
Deductions		(1.9)
Balance at December 31, 2019		3.4
Additions		0.9
Deductions		(1.3)
Balance at December 31, 2020	$	3.0