INTANGIBLE ASSETS AND GOODWILL INTANGIBLE ASSETS AND GOODWILL - FUTURE AMORTIZATION OF INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands |
Apr. 30, 2016 |
Jan. 31, 2016 |
|---|---|---|
| Intangible Assets - Future Amortization [Abstract] | ||
| 2017 (remainder of year) | $ 61,842 | |
| 2018 | 64,653 | |
| 2019 | 36,757 | |
| 2020 | 27,063 | |
| 2021 | 21,046 | |
| 2022 and thereafter | 56,188 | |
| Intangible assets with finite lives, Net | $ 267,549 | $ 245,582 |