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Goodwill (Notes) | 6 Months Ended
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Mar. 31, 2018
Goodwill [Abstract] |
Goodwill Disclosure [Text Block] | Goodwill The carrying value of goodwill is allocated to the Company’s operating segments as follows:
(in millions) | March 31, 2018 |  | September 30, 2017
Commercial Hedging | $ | 30.3 |  |  | $ | 30.7 |
Global Payments | 6.3 |  |  | 6.3 |
Physical Commodities | 2.4 |  |  | 2.4 |
Securities | 6.9 |  |  | 7.7 |
Goodwill | $ | 45.9 |  |  | $ | 47.1 |
The Company recorded $1.2 million in foreign exchange revaluation adjustments on goodwill for the six months ended March 31, 2018.

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- Definition The entire disclosure for goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2144439 + Details
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