Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Revenues	$ 5,169,508	$ 4,171,248	$ 3,911,602
Cost of revenues	4,144,065	3,269,270	3,081,837
Selling, general and administrative	535,382	455,108	432,516
Total	4,679,447	3,724,378	3,514,353
Income from operations	490,061	446,870	397,249
Other:
Income (loss) from unconsolidated entities	40,748	21,119	41,141
Other income - net	58,218	67,573	66,192
Income before income taxes	589,027	535,562	504,582
Income tax provision	206,932	172,395	164,550
Net income	382,095	363,167	340,032
Other comprehensive (loss) income, net of tax:
Change in pension liability	(858)	311	(677)
Change in fair value of available-for-sale securities		2	3
Change in unrealized income (loss) on derivative held by equity investee	31	16	223
Other comprehensive (loss) income	(827)	329	(451)
Total comprehensive income	$ 381,268	$ 363,496	$ 339,581
Income per share:
Basic	$ 2.27	$ 2.06	$ 1.91
Diluted	$ 2.18	$ 1.97	$ 1.84
Weighted average number of shares:
Basic	168,261	176,425	177,578
Diluted	175,973	184,703	185,875