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Goodwill (Notes) | 6 Months Ended
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Mar. 31, 2019
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, 2019 |  | September 30, 2018
Commercial Hedging | $ | 30.3 |  |  | $ | 30.3 |
Global Payments | 6.9 |  |  | 8.9 |
Physical Commodities | 2.4 |  |  | 2.4 |
Securities | 7.0 |  |  | 6.8 |
Goodwill | $ | 46.6 |  |  | $ | 48.4 |
The Company recorded zero and $1.2 million in foreign exchange revaluation adjustments on goodwill for the six months ended March 31, 2019 and 2018, respectively. The Company recorded additional goodwill of $0.2 million for the six months ended March 31, 2019 within the Securities operating segment related to the acquisition of Carl Kliem S.A. The Company also recorded a reduction to goodwill of $2.0 million for the three and six months ended March 31, 2019 within the Global Payments operating segment related to measurement period adjustments on the acquisition of INTL Technology Services, LLC (formerly PayCommerce Financial Solutions, LLC) and in connection with the joint venture transaction discussed in Note 17.

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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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