Income Per Share Information (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Sep. 05, 2012
Earnings Per Share [Abstract]
Net Income Attributable to Parent	$ 73,180	$ 81,325
Interest on Convertible Debt, Net of Tax	389	394
Net Income Available to Common Stockholders, Diluted	$ 73,569	$ 81,719
Basic weighted-average shares	174,205	176,076
Common stock equivalents	2,328	2,173
Incremental Common Shares Attributable to Conversion of Debt Securities	5,858	5,858
Diluted weighted-average shares	182,391	184,107
Debt Instrument [Line Items]
Shares Issued under Stock Incentive and Employee Stock Purchase Plans	473	677
Zero Point Five Percent Exchangeable Senior Notes Due Two Thousand and Thirty Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			0.50%
Restricted Stock Units RSU And Employee Stock Option Member [Member]
Debt Instrument [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,954	2,367