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Retirement Plan And Other Post-Retirement Benefits (Tables)
 3 Months Ended
Dec. 31, 2013
Retirement Plan And Other Post-Retirement Benefits [Abstract]  
Components Of Net Periodic Benefit Cost

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended December 31,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Other Post-Retirement

 

 

Retirement Plan

 

Benefits

 

 

2013

 

2012

 

2013

 

2012

 

 

 

 

 

 

 

 

 

 

 

 

 

Service Cost

 

$
2,997 

 

$
3,961 

 

$
735 

 

$
1,176 

Interest Cost

 

 
10,893 

 

 
9,124 

 

 
5,327 

 

 
4,803 

Expected Return on Plan Assets

 

 
(14,993)

 

 
(14,336)

 

 
(9,356)

 

 
(8,218)

Amortization of Prior Service Cost (Credit)

 

 
52 

 

 
60 

 

 
(534)

 

 
(534)

Amortization of Transition Amount

 

 

-

 

 

-

 

 

 -

 

 
2 

Amortization of Losses

 

 
9,002 

 

 
13,194 

 

 
661 

 

 
5,223 

Net Amortization and Deferral for

 

 

 

 

 

 

 

 

 

 

 

 

Regulatory Purposes (Including

 

 

 

 

 

 

 

 

 

 

 

 

Volumetric Adjustments) (1)

 

 
1,578 

 

 
(3,682)

 

 
6,060 

 

 
2,703 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net Periodic Benefit Cost

 

$
9,529 

 

$
8,321 

 

$
2,893 

 

$
5,155 

 

(1)    The Company’s policy is to record retirement plan and other post-retirement benefit costs in the Utility segment on a volumetric basis to reflect the fact that the Utility segment experiences higher throughput of natural gas in the winter months and lower throughput of natural gas in the summer months.