Consolidated Statements of Changes in Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]
Shares, Issued at Oct. 31, 2012		168,690
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 31, 2012	$ 3,127,871	$ 1,687	$ 404,418	$ 2,721,397	$ (983)	$ (4,819)	$ 6,171
Net Income Attributable to Parent	$ 170,606			$ 170,606
Treasury Stock, Shares, Acquired	(498)
Treasury Stock, Value, Acquired, Cost Method	$ (15,377)				$ (15,377)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		654
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	34,001	$ 7	$ 17,996		15,998
Stock Issued During Period, Shares, Employee Stock Purchase Plans		9
Stock Issued During Period, Value, Employee Stock Purchase Plan	584		222		$ 362
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	19,041		$ 19,041
Other Comprehensive Income (Loss), Net of Tax	2,432					$ 2,432
Net Income (Loss) Attributable to Noncontrolling Interest	(27)						$ (27)
Proceeds from Noncontrolling Interests	33						33
Shares, Issued at Oct. 31, 2013		169,353
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 31, 2013	3,339,164	$ 1,694	$ 441,677	$ 2,892,003	$ 0	$ (2,387)	$ 6,177
Net Income Attributable to Parent	340,032			$ 340,032
Stock Issued During Period, Shares, New Issues		7,188
Stock Issued During Period, Value, New Issues	$ 220,438	$ 72	$ 220,366
Treasury Stock, Shares, Acquired	(2,947)
Treasury Stock, Value, Acquired, Cost Method	$ (90,754)				$ (90,754)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		1,389
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	29,753	$ 13	$ 28,197		1,543
Stock Issued During Period, Shares, Employee Stock Purchase Plans
Stock Issued During Period, Value, Employee Stock Purchase Plan	715		266		$ 449
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	21,656		$ 21,656
Other Comprehensive Income (Loss), Net of Tax	(451)					$ (451)
Net Income (Loss) Attributable to Noncontrolling Interest	(28)						$ (28)
Proceeds from Noncontrolling Interests	172						172
Shares, Issued at Oct. 31, 2014		177,930
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 31, 2014	3,860,697	$ 1,779	$ 712,162	$ 3,232,035	$ (88,762)	$ (2,838)	$ 6,321
Net Income Attributable to Parent	$ 363,167			$ 363,167
Treasury Stock, Shares, Acquired	(1,665)
Treasury Stock, Value, Acquired, Cost Method	$ (56,888)				$ (56,888)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		1
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	37,826		$ (6,956)		44,782
Stock Issued During Period, Shares, Employee Stock Purchase Plans
Stock Issued During Period, Value, Employee Stock Purchase Plan	844		16		$ 828
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	22,903		$ 22,903
Other Comprehensive Income (Loss), Net of Tax	329					$ 329
Net Income (Loss) Attributable to Noncontrolling Interest	(14)						$ (14)
Proceeds from Noncontrolling Interests	(785)						(785)
Shares, Issued at Oct. 31, 2015		177,931
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 31, 2015	$ 4,228,079	$ 1,779	$ 728,125	$ 3,595,202	$ (100,040)	$ (2,509)	$ 5,522