Prepaid Expenses and Other Current Assets (Tables)

12 Months Ended

Sep. 30, 2020

Prepaid Expenses And Other Current Assets [Abstract]

Schedule of Prepaid Expenses and Other Current Assets

The following table summarizes the significant components of prepaid expenses and other current assets (in millions): 

	September 30,
	2020		2019
Vendor rebates	$	326.4	$	262.8
Other		51.9		52.8
Total prepaid expenses and other current assets	$	378.3	$	315.6