v2.4.0.6

Subsidiaries Remain Subject to Tax Examination (Detail) | 12 Months Ended
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Oct. 31, 2012
United States - Synopsys |
Income Tax Examination [Line Items] |
Year(s) Subject to Examination | Fiscal 2012
United States - Magma Design Automation |
Income Tax Examination [Line Items] |
Year(s) Subject to Examination | Fiscal years after 2008
California - Synopsys |
Income Tax Examination [Line Items] |
Year(s) Subject to Examination | Fiscal years after 2007
California - Magma Design Automation |
Income Tax Examination [Line Items] |
Year(s) Subject to Examination | Fiscal years after 2007
Hungary |
Income Tax Examination [Line Items] |
Year(s) Subject to Examination | Fiscal years after 2005
Taiwan and Japan |
Income Tax Examination [Line Items] |
Year(s) Subject to Examination | Fiscal years after 2006
Ireland |
Income Tax Examination [Line Items] |
Year(s) Subject to Examination | Fiscal years after 2007

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