Other Expenses (Tables)

6 Months Ended

Mar. 31, 2023

Other Expenses [Abstract]

Schedule of Other Operating Cost and Expense, by Component

Other expenses consisted of the following, for the periods indicated.

	Three Months Ended March 31,				Six Months Ended March 31,
(in millions)	2023		2022		2023		2022
Non-income taxes	$	2.2	$	5.5	$	6.9	$	9.1
Insurance	3.0		3.0		5.7		5.4
Employee related expenses	2.3		1.8		5.9		4.0
Other direct business expenses	4.1		2.9		8.1		4.4
Membership fees	1.1		1.1		1.9		1.8
Director and public company expenses	0.5		0.6		1.0		1.0
Office expenses	0.5		0.4		0.9		0.8
Other expenses	1.6		1.6		4.3		2.3
Total other expenses	$	15.3	$	16.9	$	34.7	$	28.8