| Component: (Network and Table) | |
|---|---|
| Network | 1080 - Disclosure - Restructuring Expenses - Additional Information (Detail) (http://www.fico.com/taxonomy/role/DisclosureRestructuringExpensesAdditionalInformation) |
| Table | Schedule of Restructuring and Related Costs [Table] |
| Reporting Entity [Axis] | 0000814547 (http://www.sec.gov/CIK) |
| Legal Entity [Axis] | Entity [Domain] |
| Restructuring Cost and Reserve [Line Items] | Period [Axis] | |||||||
|---|---|---|---|---|---|---|---|---|
2011-10-01 - 2012-09-30 | 2010-10-01 - 2011-09-30 | 2009-10-01 - 2010-09-30 | ||||||
| Restructuring Cost And Reserve [Axis] | Restructuring Cost And Reserve [Axis] | Restructuring Cost And Reserve [Axis] | ||||||
| Employee Severance [Member] | Type Of Restructuring [Domain] | Employee Severance [Member] | Facility Closing [Member] | Type Of Restructuring [Domain] | Employee Severance [Member] | Facility Closing [Member] | Type Of Restructuring [Domain] | |
Restructuring charges | 3,978,000 | 3,978,000 | 8,165,000 | 4,226,000 | 12,391,000 | 742,000 | 875,000 | 1,617,000 |
Number of positions reduced | 85 | 177 | 35 | |||||