Trade Accounts Receivable and Allowance (Notes)

9 Months Ended

Sep. 30, 2020

Receivables [Abstract]

Trade Accounts Receivable and Allowance

TRADE ACCOUNTS RECEIVABLE AND ALLOWANCE

Our trade accounts receivable is recorded net of an allowance for doubtful accounts and revenue adjustments. The allowance is based on an aging analysis using historical experience, as well as any known and expected trends or uncertainties related to customer billing and account collectability. The adequacy of our allowance is reviewed at least quarterly, and reserves for receivables not expected to be collected are established. In circumstances where we are aware of a customer's inability to meet its financial obligations, a specific reserve is recorded to reduce the net receivable to the amount we reasonably expect to collect. Bad debt expense is included in other general expenses in the consolidated statements of comprehensive income.

The following table shows changes to our allowance for doubtful accounts for the three and nine months ended September 30, 2020. Excluded from the amounts below is the portion of the allowance recorded for revenue adjustments, as that portion is not credit-related nor due to a customer’s inability to meet its financial obligations.

	Three Months Ended		Nine Months Ended
(in millions)	September 30, 2020
Balance at beginning of period	$	1.4	$	0.9
Charges to expense	0.1		1.2
Write-offs	(0.6)		(1.3)
Recoveries	0.2		0.3
Balance at end of period	$	1.1	$	1.1