Segment Analysis (Tables)

6 Months Ended

Mar. 31, 2018

Segment Analysis [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Information for the reportable segments is shown in accordance with the Segment Reporting Topic of the ASC as follows

	Three Months Ended March 31,						Six Months Ended March 31,
(in millions)	2018			2017			2018			2017
Total revenues:
Commercial Hedging	$	78.3		$	62.7		$	139.8		$	120.2
Global Payments	23.4			21.5			48.0			44.6
Securities	55.5			37.9			98.5			75.3
Physical Commodities	6,262.3			5,276.2			13,978.9			11,174.9
Clearing and Execution Services	88.0			64.2			160.2			127.8
Corporate unallocated	(0.5		)	(1.7		)	0.2			(7.6		)
Total	$	6,507.0		$	5,460.8		$	14,425.6		$	11,535.2
Operating revenues (loss):
Commercial Hedging	$	78.3		$	62.7		$	139.8		$	120.2
Global Payments	23.4			21.5			48.0			44.6
Securities	55.5			37.9			98.5			75.3
Physical Commodities	15.5			11.2			26.1			21.0
Clearing and Execution Services	88.0			64.2			160.2			127.8
Corporate unallocated	(0.5		)	(1.7		)	0.2			(7.6		)
Total	$	260.2		$	195.8		$	472.8		$	381.3
Net operating revenues (loss):
Commercial Hedging	$	61.9		$	50.5		$	111.0		$	96.1
Global Payments	21.9			19.1			44.9			39.7
Securities	27.6			24.1			51.1			49.2
Physical Commodities	12.5			9.0			20.9			17.1
Clearing and Execution Services	31.8			25.4			59.2			49.5
Corporate unallocated	(1.4		)	(4.2		)	(2.5		)	(13.4		)
Total	$	154.3		$	123.9		$	284.6		$	238.2
Net contribution:
(Revenues less cost of sales of physical commodities, transaction-based clearing expenses, variable bonus compensation, introducing broker commissions and interest expense)
Commercial Hedging	$	44.7		$	36.9		$	81.2		$	70.3
Global Payments	17.6			15.3			36.0			31.7
Securities	20.3			18.9			38.1			38.7
Physical Commodities	9.4			6.5			15.0			12.3
Clearing and Execution Services	23.9			19.6			44.4			37.6
Total	$	115.9		$	97.2		$	214.7		$	190.6
Segment income:
(Net contribution less non-variable direct segment costs)
Commercial Hedging	$	27.6		$	18.7		$	48.7		$	34.1
Global Payments	13.5			11.7			28.1			24.9
Securities	12.8			11.7			23.8			24.6
Physical Commodities	5.6			3.9			6.7			6.9
Clearing and Execution Services	12.7			7.9			23.2			13.6
Total	$	72.2		$	53.9		$	130.5		$	104.1
Reconciliation of segment income to income before tax:
Segment income	$	72.2		$	53.9		$	130.5		$	104.1
Net costs not allocated to operating segments	42.7			39.6			82.4			81.4
Income before tax	$	29.5		$	14.3		$	48.1		$	22.7
(in millions)	As of March 31, 2018			As of September 30, 2017
Total assets:
Commercial Hedging	$	1,636.1		$	1,650.3
Global Payments	208.8			199.5
Securities	2,901.3			2,101.7
Physical Commodities	378.0			339.5
Clearing and Execution Services	1,996.5			1,818.9
Corporate unallocated	83.0			133.5
Total	$	7,203.7		$	6,243.4