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Intangible Assets (Tables)
 12 Months Ended
Sep. 30, 2014
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:
 
September 30, 2014
 
September 30, 2013
(in millions)
Gross Amount
 
Accumulated
Amortization
 
Net Amount
 
Gross Amount
 
Accumulated
Amortization
 
Net Amount
Intangible assets subject to amortization
 
 
 
 
 
 
 
 
 
 
 
Noncompete agreement
$
3.7

 
$
(3.7
)
 
$
—

 
$
3.7

 
$
(3.7
)
 
$
—

Trade name
0.7

 
(0.7
)
 
—

 
0.7

 
(0.7
)
 
—

Software programs/platforms
2.2

 
(1.9
)
 
0.3

 
2.2

 
(1.5
)
 
0.7

Customer base
12.9

 
(3.8
)
 
9.1

 
12.4

 
(2.6
)
 
9.8

 
19.5

 
(10.1
)
 
9.4

 
19.0

 
(8.5
)
 
10.5

Intangible assets not subject to amortization
 
 
 
 
 
 
 
 
 
 
 
Trade name
1.1

 
—

 
1.1

 
1.1

 
—

 
1.1

Total intangible assets
$
20.6

 
$
(10.1
)
 
$
10.5

 
$
20.1

 
$
(8.5
)
 
$
11.6
Schedule of Expected Amortization Expense [Table Text Block]
Amortization expense related to intangible assets was $1.6 million, $2.2 million, and $2.5 million for the fiscal years ended September 30, 2014, 2013 and 2012, respectively.
The estimated future amortization expense as of September 30, 2014 is as follows (in millions):
Year ending September 30,
 
2015
$
1.3

2016
0.7

2017
0.7

2018
0.7

2019 and thereafter
6.0

 
$
9.4