Other Expenses (Tables)

6 Months Ended

Mar. 31, 2016

Other Expenses [Abstract]

Schedule of Other Operating Cost and Expense, by Component [Table Text Block]

Other expenses for the three and six months ended March 31, 2016 and 2015 consisted of the following:

	Three Months Ended March 31,				Six Months Ended March 31,
(in millions)	2016		2015		2016		2015
Contingent consideration, net	$	0.1	$	—	$	0.3	$	0.2
Insurance	0.3		0.4		0.7		0.9
Advertising, meetings and conferences	2.3		0.7		3.0		1.3
Non-trading hardware and software maintenance and software licensing	1.3		1.1		2.8		2.3
Office supplies and printing	0.3		0.3		0.6		0.6
Other clearing related expenses	0.3		0.3		0.5		0.6
Other non-income taxes	1.1		0.9		2.1		1.9
Other	1.7		1.8		3.7		3.1
Total other expenses	$	7.4	$	5.5	$	13.7	$	10.9