Income Per Share Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Sep. 05, 2012 Zero Point Five Percent Exchangeable Senior Notes Due Two Thousand and Thirty Two [Member]
Debt Instrument [Line Items]
Net Income Attributable to Parent	$ 45,580	$ 4,432
Interest on Convertible Debt, Net of Tax	397
Net Income Available to Common Stockholders, Diluted	$ 45,977	$ 4,432
Basic weighted-average shares	176,474	169,064
Common stock equivalents	2,556	2,839
Incremental Common Shares Attributable to Conversion of Debt Securities	5,858
Diluted weighted-average shares	184,888	171,903
Weighted-Average Number of Anti-Dilutive Options and RSU's	1,602	980
Shares Issued under Stock Incentive and Employee Stock Purchase Plans	1,013	523
Debt Instrument, Interest Rate, Stated Percentage			0.50%