Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Mar. 31, 2021

Equity [Abstract]

Reclassification out of Accumulated Other Comprehensive Income

The following table summarizes the components of and changes in accumulated other comprehensive loss (in millions):

	Foreign			Derivative
	Currency Translation			Financial Instruments			AOCI
Balance as of September 30, 2020	$	(19.7	)	$	(15.0	)	$	(34.7	)
Other comprehensive income before reclassifications		4.9			5.0			9.9
Reclassifications out of other comprehensive loss		—			—			—
Balance as of March 31, 2021	$	(14.8	)	$	(10.0	)	$	(24.8	)