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Physical Commodities Inventory (Notes)
12 Months Ended
Sep. 30, 2012
Physical Commodities Inventory [Abstract]  
Inventory Disclosure [Text Block]
Physical Commodities Inventory
Commodities in process include commodities in the process of being recycled. As of September 30, 2012 and 2011, $129.1 million and $159.4 million, respectively, of physical commodities inventory served as collateral under certain of the Company’s credit facilities, as detailed further in Note 10. The carrying values of the Company’s inventory as of September 30, 2012 and 2011 are shown below. 
(in millions)
September 30,
2012
 
September 30, 2011
Commodities in process
$
13.6

 
$
2.4

Finished commodities
118.0

 
158.2

Physical commodities inventory
$
131.6

 
$
160.6


As a result of declining market prices for some commodities towards the end of the fiscal year, the Company has recorded LCM adjustments for physical commodities inventory of $0.4 million and $21.9 million as of September 30, 2012 and 2011, respectively. The adjustments are included within 'cost of sales of physical commodities' in the consolidated income statements.