Other Expenses (Tables)

12 Months Ended

Sep. 30, 2020

Other Expenses [Abstract]

Schedule of Other Operating Cost and Expense, by Component

Other expenses for the years ended September 30, 2020, 2019, and 2018 are comprised of the following:

	Year Ended September 30,
(in millions)	2020		2019		2018
Insurance	$	4.7	$	3.4	$	2.6
Office supplies and printing	1.8		1.9		1.7
Other clearing related expenses	2.8		2.5		2.5
Other non-income taxes	6.6		4.6		4.9
Contingent consideration, net	0.5		—		—
Other	13.2		10.8		8.4
Total other expenses	$	29.6	$	23.2	$	20.1