Derivative Financial Instruments (Tables)

12 Months Ended

Sep. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative instruments in consolidated balance sheets

	September 30,
	2021		2020
Other current liabilities	$	4.7	$	4.6
Other liabilities	1.1		5.8
Total liabilities	$	5.8	$	10.4

Derivative instruments, loss (gain)

	Year Ended September 30,
	2021		2020
Mark-to-market adjustments	$	0.2	$	1.6
Net loss amortized from accumulated OCI	2.3		1.2
Total net hedging loss	$	2.5	$	2.8
Cash settlements paid	$	(4.8)	$	(1.8)