|
Subsidiaries Remain Subject to Tax Examination (Detail)
|
12 Months Ended |
|---|---|
|
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 |