Physical Commodities Inventory Physical Commodities Table (Tables)

9 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

(in millions)	June 30, 2019		September 30, 2018
Physical Ag & Energy(1)	$	147.6	$	114.7
Precious metals - held by broker-dealer subsidiary(2)	22.3		42.1
Precious metals - held by non-broker-dealer subsidiaries(3)	177.9		65.7
Physical commodities inventory	$	347.8	$	222.5