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PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS Part 6 (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013
Pension Plans [Member]
Pre-tax amounts are expected to be amortized from accumulated other comprehensive income [Abstract]
Amortization of net actuarial loss	$ 7,088
Amortization of prior service cost	497
Sub-total	7,585
Regulatory adjustment	(7,196)
Total Expected to be Amortized	389
Postretirement Plans [Member]
Pre-tax amounts are expected to be amortized from accumulated other comprehensive income [Abstract]
Amortization of net actuarial loss	6,021
Amortization of prior service cost	(4)
Sub-total	6,017
Regulatory adjustment	(6,017)
Total Expected to be Amortized	$ 0

X

- Definition

The aggregate amount in accumulated other comprehensive income, net of regulatory adjustments, expected to be recognized as a component of net periodic benefit cost over the fiscal year that follows the most recent annual statement of financial position presented, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation.

+ References

No definition available.

+ Details

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X

- Definition

The difference between the period's net periodic cost for defined benefit plans calculated in accordance with GAAP and the amount of recovery allowed in rates by the regulatory agency. These differences are deferred as regulatory assets or regulatory liabilities.

+ References

No definition available.

+ Details

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- Definition

Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation).

+ References

No definition available.

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- Definition

Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

+ References

No definition available.

+ Details

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- Definition

Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

+ References

No definition available.

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