Allowance for Doubtful Accounts (Tables)

3 Months Ended

Dec. 31, 2021

Receivables [Abstract]

Financing Receivable, Allowance for Credit Loss

Activity in the allowance for doubtful accounts for the three months ended December 31, 2021 was as follows:

(in millions)
Balance as of September 30, 2021	$	39.8
Recovery of bad debts	(0.2)
Balance as of December 31, 2021	$	39.6