Revenue from Contracts with Clients (Tables)

9 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table represents a disaggregation of the Company’s total revenues separated between revenues from contracts with clients and other sources of revenue for the periods indicated.

	Three Months Ended June 30,				Nine Months Ended June 30,
(in millions)	2021		2020		2021		2020
Revenues from contracts with clients:
Commission and clearing fees:
Sales-based:
Exchange-traded futures and options	$	51.8	$	36.4	$	147.5	$	108.9
OTC derivative brokerage	3.8		4.0		12.2		16.2
Equities and fixed income	13.2		5.2		47.0		16.6
Mutual funds	1.4		1.1		4.1		4.0
Insurance and annuity products	2.2		1.7		6.8		6.2
Other	0.9		0.3		1.2		1.1
Total sales-based commission	73.3		48.7		218.8		153.0
Trailing:
Mutual funds	3.7		3.1		10.6		9.7
Insurance and annuity products	4.4		3.6		12.5		11.3
Total trailing commission	8.1		6.7		23.1		21.0
Clearing fees	37.4		33.3		115.3		104.4
Trade conversion fees	3.2		1.8		8.9		7.5
Other	2.0		5.6		7.1		14.0
Total commission and clearing fees:	124.0		96.1		373.2		299.9
Consulting, management, and account fees:
Underwriting fees	0.2		—		0.6		0.4
Asset management fees	9.8		7.0		27.8		23.2
Advisory and consulting fees	6.3		5.7		18.9		17.0
Sweep program fees	0.6		1.0		2.2		8.6
Client account fees	3.6		2.8		11.5		8.9
Other	1.8		2.9		6.4		5.2
Total consulting, management, and account fees	22.3		19.4		67.4		63.3
Total revenues from contracts with clients	$	146.3	$	115.5	$	440.6	$	363.2
Method of revenue recognition:
Point-in-time	$	121.5	$	95.1	$	368.6	$	293.4
Time elapsed	24.8		20.4		72.0		69.8
Total revenues from contracts with clients	146.3		115.5		440.6		363.2
Other sources of revenues
Physical precious metals trading	9,287.1		7,621.2		27,991.7		37,973.9
Physical agricultural and energy product trading	498.8		323.3		1,482.0		965.5
Principal gains, net	232.1		161.0		700.7		442.0
Interest income	27.8		22.4		72.4		110.1
Total revenues	$	10,192.1	$	8,243.4	$	30,687.4	$	39,854.7
Primary geographic region:
United States	$	808.2	$	554.2	$	2,420.7	$	1,652.1
Europe	542.7		114.1		1,205.2		375.7
South America	20.2		14.6		49.3		46.1
Middle East and Asia	8,818.7		7,558.5		27,005.8		37,777.3
Other	2.3		2.0		6.4		3.5
Total revenues	$	10,192.1	$	8,243.4	$	30,687.4	$	39,854.7