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Intangible Assets (Notes)
 12 Months Ended
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