INTANGIBLE ASSETS AND GOODWILL INTANGIBLE ASSETS AND GOODWILL - INTANGIBLE ASSETS BY REPORTABLE SEGMENT (Details) - USD ($) $ in Thousands |
Apr. 30, 2016 |
Jan. 31, 2016 |
|---|---|---|
| Finite-Lived Intangible Assets | ||
| Intangible assets, net | $ 268,649 | $ 246,682 |
| Enterprise Intelligence | ||
| Finite-Lived Intangible Assets | ||
| Intangible assets, net | 227,661 | 201,503 |
| Cyber Intelligence | ||
| Finite-Lived Intangible Assets | ||
| Intangible assets, net | 40,692 | 44,802 |
| Video Intelligence | ||
| Finite-Lived Intangible Assets | ||
| Intangible assets, net | $ 296 | $ 377 |