Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Revenues	$ 860,374	$ 516,004	$ 1,504,055	$ 940,605
Cost of revenues	687,998	420,013	1,202,030	765,950
Selling, general and administrative	104,320	79,550	202,190	157,597
Total	792,318	499,563	1,404,220	923,547
Income (loss) from operations	68,056	16,441	99,835	17,058
Other:
Income (Loss) from Equity Method Investments	14,327	4,993	37,242	8,076
Other income - net	11,101	19,534	27,642	24,160
Income before income taxes	93,484	40,968	164,719	49,294
Income tax provision (benefit)	28,262	16,294	53,917	20,188
Net income	$ 65,222	$ 24,674	$ 110,802	$ 29,106
Income per share:
Basic	$ 0.37	$ 0.15	$ 0.63	$ 0.17
Diluted	$ 0.35	$ 0.14	$ 0.60	$ 0.17
Weighted average number of shares:
Basic	178,082	169,380	177,278	169,222
Diluted	186,442	178,136	185,665	177,949