Condensed Consolidated Statements of Operations (Unaudited) (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	$ 516,004	$ 373,681	$ 940,605	$ 695,636
Cost of revenues	420,013	306,821	765,950	578,429
Selling, general and administrative	79,550	68,256	157,597	137,893
Total	499,563	375,077	923,547	716,322
Income (loss) from operations	16,441	(1,396)	17,058	(20,686)
Other:
Income from unconsolidated entities	4,993	6,989	8,076	13,676
Other income - net	19,534	10,056	24,160	16,251
Income before income taxes	40,968	15,649	49,294	9,241
Income tax provision (benefit)	16,294	(1,223)	20,188	(4,845)
Net income	$ 24,674	$ 16,872	$ 29,106	$ 14,086
Income per share:
Basic	$ 0.15	$ 0.10	$ 0.17	$ 0.08
Diluted	$ 0.14	$ 0.10	$ 0.17	$ 0.08
Weighted average number of shares:
Basic	169,380	166,994	169,222	166,652
Diluted	178,136	168,503	177,949	167,805