Business Combinations (Virage Logic Corporation) - Additional Information (Detail) (USD $)	12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Business Acquisition [Line Items]
Cash payments, net of cash acquired	$ 970,089,000	$ 41,015,000	$ 500,829,000
Fiscal 2010 Acquisitions Virage Logic Corporation
Business Acquisition [Line Items]
Acquisition price per share			$ 12.00
Cash payments, net of cash acquired			299,500,000
Purchase consideration			316,600,000
Stock awards assumed			4,600,000
Identifiable intangibles assets acquired			96,700,000
IPR&D acquired			13,200,000
Goodwill arising from acquisition			210,100,000
Acquisition-related cost			13,000,000
Total fair value of stock awards assumed			21,700,000
Fair value of assumed allocated to purchase consideration			4,600,000
Fair value of assumed stock awards allocated for future services			$ 17,100,000
Fiscal 2010 Acquisitions Virage Logic Corporation | Minimum
Business Acquisition [Line Items]
Identifiable intangible assets amortization period (in years)			2 years
Fiscal 2010 Acquisitions Virage Logic Corporation | Maximum
Business Acquisition [Line Items]
Identifiable intangible assets amortization period (in years)			10 years