|
Business Combinations (Details) (USD $)
|
12 Months Ended | 12 Months Ended | 24 Months Ended | 12 Months Ended | 12 Months Ended | 24 Months Ended | 12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Oct. 31, 2011
|
Oct. 31, 2010
|
Oct. 31, 2009
|
Oct. 31, 2011
Fiscal 2011 Acquisitions [Member]
|
Oct. 31, 2010
Other Fiscal 2010 Acquisitions [Member]
years
|
Oct. 31, 2011
Other Fiscal 2010 Acquisitions [Member]
|
Oct. 31, 2009
Fiscal 2009 Acquisitions [Member]
|
Oct. 31, 2011
Fiscal 2009 Acquisitions [Member]
|
Oct. 31, 2011
Minimum [Member]
Fiscal 2011 Acquisitions [Member]
years
|
Oct. 31, 2010
Minimum [Member]
Other Fiscal 2010 Acquisitions [Member]
years
|
Oct. 31, 2009
Minimum [Member]
Fiscal 2009 Acquisitions [Member]
years
|
Oct. 31, 2010
Maximum [Member]
years
|
Oct. 31, 2011
Maximum [Member]
Fiscal 2011 Acquisitions [Member]
years
|
Oct. 31, 2010
Maximum [Member]
Other Fiscal 2010 Acquisitions [Member]
years
|
Oct. 31, 2009
Maximum [Member]
Fiscal 2009 Acquisitions [Member]
years
|
Oct. 31, 2010
Fiscal 2010 Acquisitions Virage Logic Corporation [Member]
|
Oct. 31, 2011
Fiscal 2010 Acquisitions Virage Logic Corporation [Member]
|
Oct. 31, 2010
Fiscal 2010 Acquisitions Virage Logic Corporation [Member]
Minimum [Member]
years
|
|
| Business Acquisition [Line Items] | ||||||||||||||||||
| Goodwill deductible for tax purpose | $ 39,400,000 | |||||||||||||||||
| Purchase consideration | 37,400,000 | 221,700,000 | 62,900,000 | 316,600,000 | ||||||||||||||
| Goodwill arising from acquisition | 30,700,000 | 110,800,000 | 35,100,000 | 210,100,000 | ||||||||||||||
| Identifiable intangibles assets acquired | 9,300,000 | 92,800,000 | 27,500,000 | 96,700,000 | ||||||||||||||
| Identifiable intangible assets amortization period (in years) | 2 | 1 | 1 | 10 | 10 | 10 | 6 | 2 | ||||||||||
| Acquisition price per share | $ 12.00 | |||||||||||||||||
| Cash payments, net of cash acquired | 41,015,000 | 500,829,000 | 53,358,000 | 299,500,000 | ||||||||||||||
| Stock awards assumed | 4,600,000 | |||||||||||||||||
| IPR&D acquired | 13,200,000 | |||||||||||||||||
| Acquisition-related cost | 3,356,000 | 7,210,000 | 10,600,000 | 13,000,000 | ||||||||||||||
| Business acquisition, contingent consideration, at fair value on acquisition date | 7,800,000 | 7,800,000 | ||||||||||||||||
| Total fair value of stock awards assumed | 21,700,000 | |||||||||||||||||
| Fair value of stock award assumed & allocated to goodwill | 4,600,000 | |||||||||||||||||
| Fair value of assumed stock awards allocated for future services | 17,100,000 | |||||||||||||||||
| Payments on achievements of milestones | 10,000,000 | |||||||||||||||||
| Achievement of milestone period (in years) | 3 | |||||||||||||||||
| Contingent consideration liability | 4,300,000 | |||||||||||||||||
| In-process research and development | $ 2,200,000 | $ 2,200,000 | ||||||||||||||||