Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Revenues	$ 1,173,617	$ 1,057,244	$ 2,355,740	$ 2,131,029
Expenses
Operating	1,048,213	947,916	2,116,092	1,914,336
Selling, general and administrative	84,482	85,164	172,231	169,184
Amortization of intangible assets	7,305	5,301	14,494	10,850
Total expenses	1,140,000	1,038,381	2,302,817	2,094,370
Operating profit	33,617	18,863	52,923	36,659
Other-than-temporary impairment credit losses on auction rate security recognized in earnings		(313)		(313)
Income from unconsolidated affiliates, net	1,133	1,501	2,328	4,633
Interest expense	(3,033)	(2,441)	(6,343)	(5,275)
Income from continuing operations before income taxes	31,717	17,610	48,908	35,704
Provision for income taxes	(12,443)	(5,863)	(16,252)	(13,317)
Income from continuing operations	19,274	11,747	32,656	22,387
Loss from discontinued operations, net of taxes		(35)		(45)
Net income	$ 19,274	$ 11,712	$ 32,656	$ 22,342
Net income per common share-Basic
Income from continuing operations	$ 0.35	$ 0.22	$ 0.60	$ 0.42
Loss from discontinued operations, net of taxes
Net income	$ 0.35	$ 0.22	$ 0.60	$ 0.42
Net income per common share-Diluted
Income from continuing operations	$ 0.35	$ 0.21	$ 0.59	$ 0.41
Loss from discontinued operations, net of taxes
Net income	$ 0.35	$ 0.21	$ 0.59	$ 0.41
Weighted-average common and common equivalent shares outstanding
Basic	54,705	53,944	54,615	53,721
Diluted	55,804	54,963	55,650	54,728
Dividends declared per common share	$ 0.150	$ 0.145	$ 0.300	$ 0.290