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Intangible Assets - (Tables)
 9 Months Ended
Jun. 30, 2013
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, 2013
 
September 30, 2012
(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

 
$
(3.0
)
 
$
0.7

Trade name
0.7

 
(0.6
)
 
0.1

 
0.7

 
(0.5
)
 
0.2

Software programs/platforms
2.2

 
(1.4
)
 
0.8

 
2.2

 
(1.0
)
 
1.2

Customer base
12.7

 
(2.2
)
 
10.5

 
9.6

 
(1.8
)
 
7.8

 
19.3

 
(7.9
)
 
11.4

 
16.2

 
(6.3
)
 
9.9

Intangible assets not subject to amortization
 
 
 
 
 
 
 
 
 
 
 
Trade name
1.1

 
—

 
1.1

 
1.2

 
—

 
1.2

Total intangible assets
$
20.4

 
$
(7.9
)
 
$
12.5

 
$
17.4

 
$
(6.3
)
 
$
11.1
Schedule of Expected Amortization Expense [Table Text Block]
Amortization expense related to intangible assets was $1.7 million and $1.8 million for the nine months ended June 30, 2013 and 2012, respectively.
As of June 30, 2013, the estimated future amortization expense was as follows:
(in millions)
 
Fiscal 2013 (remaining three months)
$
1.0

Fiscal 2014
1.7

Fiscal 2015
1.4

Fiscal 2016
1.1

Fiscal 2017
1.0

Fiscal 2018 and thereafter
5.2

 
$
11.4