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SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2021
Accounting Policies [Abstract] |
Summary of Annual Rate of Depreciation on Property and Equipment | 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 |  | 33 - 50
Office furniture and equipment |  | 10 - 20
Building |  | 4
Leasehold improvements |  | The shorter of term of the lease or the useful life of the asset
Weighted Average Assumptions Used to Estimate the Fair Value of Employee Stock Purchase Plans | The fair value of options granted and Employee Stock Purchase Plan in 2021, 2020 and 2019 is estimated at the date of grant using the following weighted average assumptions:
|  | Year ended December 31,
Employee Stock Options |  | 2021 |  | 2020 |  | 2019
Employee Stock Options |  |  |  |  |  |
Expected volatility |  | 25.28% |  | 23.63% |  | 20.78%
Risk-free interest rate |  | 0.65% |  | 0.32% |  | 1.98%
Dividend yield |  | 0.0% |  | 0.0% |  | 0.0%
Expected term (years) |  | 4.22 |  | 4.15 |  | 4.11
Employee Stock Purchase Plan |  |  |  |  |  |
Expected volatility |  | 22.44% |  | 36.58% |  | 18.59%
Risk-free interest rate |  | 0.24% |  | 0.05% |  | 0.8%
Dividend yield |  | 0.0% |  | 0.0% |  | 0.0%
Expected term (years) |  | 0.5 |  | 0.5 |  | 0.5

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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