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SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2017
Accounting Policies [Abstract] |
Schedule of Property and Equipment Depreciation Rates | Depreciation is calculated using the straight-line method over the estimated useful lives of the assets, at the following annual rates:
| %
Computers and peripheral equipment | 20 - 33
Office furniture and equipment | 7 - 20
Internal use software | 33
Schedule of Other Intangible Assets Depreciation Rates | Intangible assets are amortized over their estimated useful lives using the straight-line method, at the following annual rates ranges:
| %
Core technology | 12.5 - 50
Customer relationships | 14.7 - 33.3
Trademarks | 12.5 - 50
Customer backlog | 50 - 100
Schedule of Accumulated Other Comprehensive Income, Net | The following tables show the components of accumulated other comprehensive income, net of taxes, as of December 31, 2017 and 2016:
|  | Year ended December 31, 2017 |
|  | Unrealized losses on marketable securities |  |  | Unrealized gains (losses) on cash flow hedges |  |  | Foreign currency translation adjustment |  |  | Total |
Beginning balance |  | $ | (216 | ) |  | $ | (101 | ) |  | $ | (46,507 | ) |  | $ | (46,824 | )
Other comprehensive income (loss) before reclassifications |  |  | (854 | ) |  |  | 6,821 |  |  |  | 13,529 |  |  |  | 19,496 |
Amounts reclassified from accumulated other comprehensive income |  |  | - |  |  |  | (5,586 | ) |  |  | - |  |  |  | (5,586 | )
Net current-period other comprehensive income (loss) |  |  | (854 | ) |  |  | 1,235 |  |  |  | 13,529 |  |  |  | 13,910 |
Ending balance |  | $ | (1,070 | ) |  | $ | 1,134 |  |  | $ | (32,978 | ) |  | $ | (32,914 | )
|  | Year ended December 31, 2016 |
|  | Unrealized gains (losses) on marketable securities |  |  | Unrealized gains (losses) on cash flow hedges |  |  | Foreign currency translation adjustment |  |  | Total |
Beginning balance |  | $ | (1,930 | ) |  | $ | (569 | ) |  | $ | (21,706 | ) |  | $ | (24,205 | )
Other comprehensive income (loss) before reclassifications |  |  | 5,102 |  |  |  | 600 |  |  |  | (24,801 | ) |  |  | (19,099 | )
Amounts reclassified from accumulated other comprehensive income |  |  | (3,388 | ) |  |  | (132 | ) |  |  | - |  |  |  | (3,520 | )
Net current-period other comprehensive income (loss) |  |  | 1,714 |  |  |  | 468 |  |  |  | (24,801 | ) |  |  | (22,619 | )
Ending balance |  | $ | (216 | ) |  | $ | (101 | ) |  | $ | (46,507 | ) |  | $ | (46,824 | )

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