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Physical Commodities Inventory
9 Months Ended
Jun. 30, 2011
Physical Commodities Inventory [Abstract]  
Inventory Disclosure [Text Block]
Physical Commodities Inventory
Physical commodities inventory is valued at the lower of cost or fair value, determined using the weighted-average cost method. Commodities in process include commodities in the process of being recycled. At June 30, 2011 and September 30, 2010, $246.2 million and $124.8 million, respectively, of physical commodities inventory served as collateral under one of the Company’s credit facilities, as detailed further in Note 11. The carrying values of the Company’s inventory at June 30, 2011 and September 30, 2010 are shown below. 
(in millions)
June 30,

2011
 
September 30, 2010
Commodities in process
$
1.4


 
$
3.6


Finished commodities
246.5


 
121.4


Physical commodities inventory, at cost
$
247.9


 
$
125.0