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Commitments and Contingencies (Tables)
 9 Months Ended
Jun. 30, 2012
Commitments and Contingencies [Abstract]  
Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block]
As of June 30, 2012, our contractual obligations and commitments over the next five years are summarized in the table below:
(in thousands)
 
 
 
 
Total
 
Next 12 Months
 
Years 2-3
 
Years 4-5
 
> 5 Years
Purchase obligations
$
28,022

 
$
27,696

 
$
235

 
$
91

 
$
—

Credit facility borrowings
22,291

 
22,291

 
—

 
—

 
—

Asset retirement obligations
4,953

 
—

 
390

 
33

 
4,530

Operating lease obligations
4,037

 
959

 
365

 
222

 
2,491

Capital lease obligations
2,924

 
2,924

 
—

 
—

 
—

Total contractual obligations and  commitments
$
62,227

 
$
53,870

 
$
990

 
$
346

 
$
7,021