CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2011		Oct. 31, 2010		Oct. 31, 2009
Revenues	$ 4,246,842		$ 3,495,747		$ 3,481,823
Expenses
Operating	3,781,264		3,134,018		3,114,699
Selling, general and administrative	324,762		241,526		263,633
Amortization of intangible assets	23,248		11,364		11,384
Total expenses	4,129,274		3,386,908		3,389,716
Operating profit	117,568		108,839		92,107
Other-than-temporary impairment losses on auction rate security:
Gross impairment losses					(3,695)
Impairements recognized in other comprehensive income			(127)		2,129
Income from unconsolidated affiliates, net	3,915
Interest expense	(15,805)		(4,639)		(5,881)
Income from continuing operations before income taxes	105,678		104,073		84,660
Provision for income taxes	(36,980)		(40,203)		(29,170)
Income from continuing operations	68,698		63,870		55,490
Discontinued Operations
(Loss) income from discontinued operations, net of taxes	(194)		251		(1,197)
Net income	$ 68,504		$ 64,121		$ 54,293
Net income per common share-Basic
Income from continuing operations	$ 1.29	[1]	$ 1.23	[1]	$ 1.08
Loss from discontinued operations		[1]		[1]	$ (0.02)
Net Income	$ 1.29	[1]	$ 1.23	[1]	$ 1.06
Net income per common share-Diluted
Income from continuing operations	$ 1.27	[1]	$ 1.21	[1]	$ 1.07
Loss from discontinued operations		[1]		[1]	$ (0.02)
Net Income	$ 1.27	[1]	$ 1.21	[1]	$ 1.05
Weighted-average common and common equivalent shares outstanding
Basic	53,121		52,117		51,373
Diluted	54,103		52,908		51,845
Dividends declared per common share	$ 0.56		$ 0.54		$ 0.52

[1] The sum of the quarterly per share amounts may not equal per share amounts reported for the year-to-date periods, due to the effects of rounding for each period.