XML 132 R41.htm IDEA: XBRL DOCUMENT v2.3.0.15
Inventories (Tables)
12 Months Ended
Sep. 30, 2011
Inventories [Abstract] 
Inventories
                 
    2011     2010  
Non-utility LPG and natural gas
  $ 222.2     $ 157.9  
Gas Utility natural gas
    95.6       111.5  
Materials, supplies and other
    45.2       44.6  
 
           
Total inventories
  $ 363.0     $ 314.0