Derivative Financial Instruments (Tables)

9 Months Ended

Jun. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative instruments in condensed consolidated balance sheets

	June 30, 2021		September 30, 2020
Other current liabilities	$	4.7	$	4.6
Other liabilities	2.1		5.8
Total liabilities	$	6.8	$	10.4

Derivative Instruments, Loss (Gain)

	Three Months Ended June 30,				Nine Months Ended June 30,
	2021		2020		2021		2020
Mark-to-market adjustments	$	0.1	$	1.5	$	—	$	1.3
Net loss amortized from accumulated OCI	0.6		0.6		1.7		0.6
Total net hedging losses	$	0.7	$	2.1	$	1.7	$	1.9
Cash settlements paid	$	(1.2)	$	(0.9)	$	(3.6)	$	(0.7)