Derivative Financial Instruments (Tables)

3 Months Ended

Dec. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative instruments in condensed consolidated balance sheets

	December 31, 2021		September 30, 2021
Other current liabilities	$	3.6	$	4.7
Other liabilities	—		1.1
Total liabilities	$	3.6	$	5.8

Derivative Instruments, Loss (Gain)

	Three Months Ended December 31,
	2021		2020
Mark-to-market adjustments	$	(0.9)	$	—
Net loss amortized from accumulated OCI	0.5		0.5
Total net hedging (gain) loss	$	(0.4)	$	0.5
Cash settlements paid	$	(1.3)	$	(1.2)