Condensed Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
Revenues	$ 1,502,909	$ 1,269,934	$ 3,787,151	$ 3,314,057
Cost of revenues	1,176,028	991,416	2,986,471	2,574,298
Selling, general and administrative	155,212	134,984	440,183	385,120
Total	1,331,240	1,126,400	3,426,654	2,959,418
Income from operations	171,669	143,534	360,497	354,639
Other:
Income from unconsolidated entities	19,925	4,998	112,274	22,754
Other income - net	11,980	15,121	39,793	43,474
Income before income taxes	203,574	163,653	512,564	420,867
Income tax provision (benefit)	55,011	58,170	168,947	153,150
Net income	148,563	105,483	343,617	267,717
Other comprehensive (loss) income, net of tax:
Other comprehensive (loss) income, net	167	155	504	54
Total comprehensive income	$ 148,730	$ 105,638	$ 344,121	$ 267,771
Per share:
Basic earnings	$ 0.91	$ 0.64	$ 2.11	$ 1.58
Diluted earnings	0.87	0.61	2.01	1.52
Cash dividends declared	$ 0.08		$ 0.16
Weighted average number of shares:
Basic	163,478	165,919	163,186	169,692
Diluted	171,562	173,405	171,127	177,403