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Intangible Assets (Notes) | 12 Months Ended
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Sep. 30, 2015
Intangible Assets [Abstract] |
Intangible Assets Disclosure [Text Block] | Intangible Assets Intangible assets of $1.6 million, attributed to customer relationships and software programs/platforms, acquired during the fiscal year ended September 30, 2015 relate to an acquisition, as discussed in note 18. The gross and net carrying values of intangible assets as of the balance sheet dates, by major intangible asset class are as follows:
| September 30, 2015 |  | September 30, 2014
(in millions) | Gross Amount |  | Accumulated Amortization |  | Net Amount |  | Gross Amount |  | Accumulated Amortization |  | Net Amount
Intangible assets subject to amortization: |  |  |  |  |  |  |  |  |  |  |
Software programs/platforms | $ | 2.7 |  |  | $ | (2.3 | ) |  | $ | 0.4 |  |  | $ | 2.2 |  |  | $ | (1.9 | ) |  | $ | 0.3 |
Customer base | 14.0 |  |  | (4.9 | ) |  | 9.1 |  |  | 12.9 |  |  | (3.8 | ) |  | 9.1 |
| 16.7 |  |  | (7.2 | ) |  | 9.5 |  |  | 15.1 |  |  | (5.7 | ) |  | 9.4 |
Intangible assets not subject to amortization: |  |  |  |  |  |  |  |  |  |  |
Trade name | 1.1 |  |  | — |  |  | 1.1 |  |  | 1.1 |  |  | — |  |  | 1.1 |
Total intangible assets | $ | 17.8 |  |  | $ | (7.2 | ) |  | $ | 10.6 |  |  | $ | 16.2 |  |  | $ | (5.7 | ) |  | $ | 10.5 |
Amortization expense related to intangible assets was $1.5 million, $1.6 million, and $2.2 million for the fiscal years ended September 30, 2015, 2014, and 2013, respectively. The estimated future amortization expense as of September 30, 2015 is as follows (in millions):
Year ending September 30, |
2016 | $ | 1.0 |
2017 | 1.0 |
2018 | 1.0 |
2019 | 1.1 |
2020 and thereafter | 5.4 |
| $ | 9.5 |

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- Definition The entire disclosure for all or part of the information related to 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 1 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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