| Component: (Network and Table) | |
|---|---|
| Network | 2418402 - Disclosure - Revenue by Geographic Area (Detail) (http://www.ansys.com/role/RevenueByGeographicAreaDetail) |
| Table | Schedule of Revenues from External Customers and Long-Lived Assets [Table] |
| Reporting Entity [Axis] | 0001013462 (http://www.sec.gov/CIK) |
| Revenues from External Customers and Long-Lived Assets [Line Items] | Period [Axis] | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2016-01-01 - 2016-12-31 | 2015-01-01 - 2015-12-31 | 2014-01-01 - 2014-12-31 | |||||||||||||||||||||||||
| Geographical [Axis] | Geographical [Axis] | Geographical [Axis] | |||||||||||||||||||||||||
| United States | Japan | Germany | South Korea | France | Canada | Other European | Other international | Segment, Geographical [Domain] | United States | Japan | Germany | South Korea | France | Canada | Other European | Other international | Segment, Geographical [Domain] | United States | Japan | Germany | South Korea | France | Canada | Other European | Other international | Segment, Geographical [Domain] | |
Total revenue | 988,465,000 | 942,753,000 | 936,021,000 | ||||||||||||||||||||||||