XML 20 R46.htm IDEA: XBRL DOCUMENT v2.3.0.15
Concentration of Credit Risk (Table)
12 Months Ended
Sep. 30, 2011
Concentration of Credit Risk Tables Abstract 
Schedules of Concentration of Risk, by Risk Factor
 September 30, 2011 September 30, 2010
    
Investment grade 54% 58%
Non-investment grade46% 42%
    Total100% 100%
Fair Value, Concentration of Risk
         
  Natural Gas Distribution Segment (1)  Nonregulated Segment  Consolidated
  (In thousands)
         
Investment grade counterparties$ - $ 16 $ 16
Non-investment grade counterparties  -   1,081   1,081
 $ - $ 1,097 $ 1,097
         
(1)       Counterparty risk for our natural gas distribution segment is minimized because hedging
gains and losses are passed through to our customers.