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Intangible Assets - (Tables) | 9 Months Ended
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Jun. 30, 2017
Intangible Assets [Abstract] |
Schedule of Finite and Indefinite-Lived Intangible Assets [Table Text Block] | The gross and net carrying values of intangible assets as of the balance sheet dates, by major intangible asset class are as follows:
| June 30, 2017 |  | September 30, 2016
(in millions) | Gross Amount |  | Accumulated Amortization |  | Net Amount |  | Gross Amount |  | Accumulated Amortization |  | Net Amount
Intangible assets subject to amortization |  |  |  |  |  |  |  |  |  |  |
Trade name | $ | 1.1 |  |  | $ | (1.0 | ) |  | $ | 0.1 |  |  | $ | 1.1 |  |  | $ | (0.6 | ) |  | $ | 0.5 |
Software programs/platforms | 2.7 |  |  | (2.4 | ) |  | 0.3 |  |  | 2.7 |  |  | (2.4 | ) |  | 0.3 |
Customer base | 20.0 |  |  | (7.4 | ) |  | 12.6 |  |  | 14.0 |  |  | (5.7 | ) |  | 8.3 |
Total intangible assets | $ | 23.8 |  |  | $ | (10.8 | ) |  | $ | 13.0 |  |  | $ | 17.8 |  |  | $ | (8.7 | ) |  | $ | 9.1 |
Schedule of Expected Amortization Expense [Table Text Block] | Amortization expense related to intangible assets was $2.1 million and $1.2 million for the nine months ended June 30, 2017 and 2016, respectively. As of June 30, 2017, the estimated future amortization expense was as follows:
(in millions) |
Fiscal 2017 (remaining three months) | $ | 0.7 |
Fiscal 2018 | 2.2 |
Fiscal 2019 | 2.2 |
Fiscal 2020 | 2.0 |
Fiscal 2021 and thereafter | 5.9 |
| $ | 13.0 |

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- Definition Intangible Assets [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life or exist in perpetuity, by either major class or business segment. + References No definition available. + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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