Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income	$ 8,460	$ 5,478	$ 88,999	$ 106,715
Net (losses) gains in fair value of derivative instruments (net of tax $4,801, $913, $4,209 and $(2,094), respectively)	(6,772)	(1,866)	(5,938)	2,953
Reclassifications of net losses on derivative instruments (net of tax of $(201), $(120), $(725) and $(362), respectively)	283	171	1,023	511
Benefit plans (net of tax of $(80), $0, $(242) and $(1,461),respectively)	101	(1)	317	2,060
Comprehensive income	$ 2,072	$ 3,782	$ 84,401	$ 112,239

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References+ Details

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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- Definition

Net of tax amount of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. Also includes reclassification adjustments of an entity's share of an equity investee's deferred hedging gain (loss) realized in net income.

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- Definition

Net of tax amount, before reclassification adjustments, of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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