Condensed Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net income	$ 5,373	$ 8,460	$ 100,444	$ 88,999
Net gains (losses) in fair value of derivative instruments (net of tax $(5,301), $4,801, $(9,638) and $4,209, respectively)	7,475	(6,772)	13,590	(5,938)
Reclassifications of net losses on derivative instruments (net of tax of $(84), $(201), $(252) and $(725), respectively)	119	283	356	1,023
Benefit plans (net of tax of $(140), $(80), $(418) and $(242),respectively)	195	101	588	317
Other comprehensive income (loss)	7,789	(6,388)	14,534	(4,598)
Comprehensive income	$ 13,162	$ 2,072	$ 114,978	$ 84,401

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.

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+ Details

- Definition

Net of tax amount of other comprehensive income (loss) attributable to the parent entity.

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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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