STOCKHOLDERS' EQUITY STOCKHOLDERS' EQUITY - AMOUNTS RECLASSIFIED OUT OF ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($)
$ in Thousands |
3 Months Ended |
Apr. 30, 2018 |
Apr. 30, 2017 |
| Reclassifications Out of Accumulated Other Comprehensive Income (Loss) |
|
|
| Amounts reclassified out of accumulated other comprehensive income (loss) |
$ 390
|
|
| Foreign Exchange Contract |
|
|
| Reclassifications Out of Accumulated Other Comprehensive Income (Loss) |
|
|
| Derivative Instruments, gains (losses) Reclassified from Accumulated OCI into Income, Effective Portion, Net |
433
|
$ 921
|
| Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Income Taxes |
43
|
92
|
| Amounts reclassified out of accumulated other comprehensive income (loss) |
390
|
829
|
| Foreign Exchange Contract | Cost of revenue - product |
|
|
| Reclassifications Out of Accumulated Other Comprehensive Income (Loss) |
|
|
| Derivative Instruments, gains (losses) Reclassified from Accumulated OCI into Income, Effective Portion, Net |
37
|
86
|
| Foreign Exchange Contract | Cost of revenue - service and support |
|
|
| Reclassifications Out of Accumulated Other Comprehensive Income (Loss) |
|
|
| Derivative Instruments, gains (losses) Reclassified from Accumulated OCI into Income, Effective Portion, Net |
40
|
75
|
| Foreign Exchange Contract | Research and development, net |
|
|
| Reclassifications Out of Accumulated Other Comprehensive Income (Loss) |
|
|
| Derivative Instruments, gains (losses) Reclassified from Accumulated OCI into Income, Effective Portion, Net |
220
|
482
|
| Foreign Exchange Contract | Selling, general and administrative |
|
|
| Reclassifications Out of Accumulated Other Comprehensive Income (Loss) |
|
|
| Derivative Instruments, gains (losses) Reclassified from Accumulated OCI into Income, Effective Portion, Net |
$ 136
|
$ 278
|