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Summary Of Significant Accounting Policies (Tables)
 9 Months Ended
Jun. 30, 2014
Accounting Policies [Abstract]  
Components Of Accumulated Other Comprehensive Income (Loss)
The components of Accumulated Other Comprehensive Loss and changes for the quarter and nine months ended June 30, 2014, net of related tax effect, are as follows (amounts in parentheses indicate debits) (in thousands): 
 
Gains and Losses on Derivative Financial Instruments
Gains and Losses on Securities Available for Sale
Funded Status of the Pension and Other Post-Retirement Benefit Plans
Total
Three Months Ended June 30, 2014
 
 
 
 
Balance at April 1, 2014
$
2,937

$
8,301

$
(56,293
)
$
(45,055
)
Other Comprehensive Gains and Losses Before Reclassifications
(5,565
)
771

—

(4,794
)
Amounts Reclassified From Other Comprehensive Loss
6,202

9

—

6,211

Balance at June 30, 2014
$
3,574

$
9,081

$
(56,293
)
$
(43,638
)
Nine Months Ended June 30, 2014
 
 
 
 
Balance at October 1, 2013
$
30,722

$
6,337

$
(56,293
)
$
(19,234
)
Other Comprehensive Gains and Losses Before Reclassifications
$
(42,935
)
$
2,735

$
—

$
(40,200
)
Amounts Reclassified From Other Comprehensive Loss
$
15,787

$
9

$
—

$
15,796

Balance at June 30, 2014
$
3,574

$
9,081

$
(56,293
)
$
(43,638
)
Schedule Of Reclassifications Out Of Accumulated Other Comprehensive Loss
The details about the reclassification adjustments out of accumulated other comprehensive loss for the quarter and nine months ended June 30, 2014 are as follows (amounts in parentheses indicate debits to the income statement) (in thousands):
Details About Accumulated Other Comprehensive Loss Components
Amount of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Loss
Affected Line Item in the Statement Where Net Income is Presented
 
Three Months Ended 
 June 30, 2014
Nine Months Ended 
 June 30, 2014
 
Gains (Losses) on Derivative Financial Instrument Cash Flow Hedges:
 
 
 
     Commodity Contracts

($14,547
)

($27,372
)
Operating Revenues
     Commodity Contracts
83

(3,549
)
Purchased Gas
Gains (Losses) on Securities Available for Sale
(16
)
(16
)
Other Income
 
(14,480
)
(30,937
)
Total Before Income Tax
 
8,269

15,141

Income Tax Expense
 

($6,211
)

($15,796
)
Net of Tax
Schedule Of Other Current Assets
The components of the Company’s Other Current Assets are as follows (in thousands):
                            
At June 30, 2014
 
At September 30, 2013
 
 
 
 
Prepayments
$
10,609

 
$
10,605

Prepaid Property and Other Taxes
11,008

 
13,079

Federal Income Taxes Receivable
—

 
1,122

State Income Taxes Receivable
—

 
3,275

Fair Values of Firm Commitments
—

 
1,829

Regulatory Assets
27,795

 
26,995

 
$
49,412

 
$
56,905
Schedule Of Other Accruals And Current Liabilities
The components of the Company’s Other Accruals and Current Liabilities are as follows (in thousands):
                            
At June 30, 2014
 
At September 30, 2013
 
 
 
 
Accrued Capital Expenditures
$
82,021

 
$
41,100

Regulatory Liabilities
14,109

 
20,013

Reserve for Gas Replacement
30,526

 
—

Federal Income Taxes Payable
709

 
—

State Income Taxes Payable
5,897

 
—

Other
20,883

 
22,833

 
$
154,145

 
$
83,946