Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Revenues	$ 4,300,265	$ 4,246,842	$ 3,495,747
Expenses
Operating	3,854,380	3,781,264	3,134,018
Selling, general and administrative	327,855	324,762	241,526
Amortization of intangible assets	21,464	23,248	11,364
Total expenses	4,203,699	4,129,274	3,386,908
Operating profit	96,566	117,568	108,839
Other-than-temporary impairment credit losses on auction rate security recognized in earnings	(313)		(127)
Income from unconsolidated affiliates, net	6,395	3,915
Interest expense	(9,999)	(15,805)	(4,639)
Income from continuing operations before income taxes	92,649	105,678	104,073
Provision for income taxes	(29,931)	(36,980)	(40,203)
Income from continuing operations	62,718	68,698	63,870
(Loss) income from discontinued operations, net of taxes	(136)	(194)	251
Net income	$ 62,582	$ 68,504	$ 64,121
Net income per common share-Basic
Income from continuing operations	$ 1.16	$ 1.29	$ 1.23
Loss from discontinued operations, net of taxes
Net Income	$ 1.16	$ 1.29	$ 1.23
Net income per common share-Diluted
Income from continuing operations	$ 1.14	$ 1.27	$ 1.21
Loss from discontinued operations, net of taxes
Net Income	$ 1.14	$ 1.27	$ 1.21
Weighted-average common and common equivalent shares outstanding
Basic	53,987	53,121	52,117
Diluted	54,914	54,103	52,908
Dividends declared per common share	$ 0.58	$ 0.56	$ 0.54