Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Revenues	$ 1,056,857	$ 689,160	$ 2,560,912	$ 1,629,765
Cost of revenues	817,232	545,089	2,019,262	1,311,039
Selling, general and administrative	109,981	88,870	312,171	246,467
Total	927,213	633,959	2,331,433	1,557,506
Income (loss) from operations	129,644	55,201	229,479	72,259
Other:
Income (Loss) from Equity Method Investments	950	768	38,192	8,844
Other income - net	20,731	12,284	48,373	36,444
Income before income taxes	151,325	68,253	316,044	117,547
Income tax provision (benefit)	53,618	21,658	107,536	41,846
Net income	$ 97,707	$ 46,595	$ 208,508	$ 75,701
Income per share:
Basic	$ 0.55	$ 0.28	$ 1.17	$ 0.45
Diluted	$ 0.53	$ 0.26	$ 1.13	$ 0.43
Weighted average number of shares:
Basic	178,217	169,268	177,591	169,237
Diluted	186,501	178,001	185,944	177,966